Trial reportThe Journal of clinical endocrinology and metabolism2016
Testosterone Treatment and Sexual Function in Older Men With Low Testosterone Levels.
Registry-linked trialAbstract readMulticenter StudyRandomized Controlled Trial
In one paragraph
Trial report in The Journal of clinical endocrinology and metabolism, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04601233 (Testosterone TReatment for Erectile Dysfunction in Male Multiple Sclerosis Patients With Low Testosterone), which is not on this map. Cited by 54 papers, 3 of them syntheses that pooled it.
0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed, 3 pooled it
–field-weighted citation impact
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
NCT04601233 phase4not yet recruitingnot on this mapstarted 2026, after this paper: background citation
Testosterone TReatment for Erectile Dysfunction in Male Multiple Sclerosis Patients With Low Testosterone (TTRED-MS Study)
Who cites it
54 citing papers in PubMed, 3 syntheses or guidelines pooled it.
- Testosterone replacement in men with sexual dysfunction.The Cochrane database of systematic reviews · 2024Pooled it
- What are the benefits and harms of testosterone therapy for male sexual dysfunction?-a systematic review.International journal of impotence research · 2019Pooled it
- Survivorship, Version 2.2017, NCCN Clinical Practice Guidelines in Oncology.Journal of the National Comprehensive Cancer Network : JNCCN · 2017Guideline
- Testosterone Treatment and Sexual Function in Men: Secondary Analysis of the T4DM (Testosterone for Diabetes) Trial.The Journal of clinical endocrinology and metabolism · 2025Trial
- Efficacy of Testosterone Treatment in Hemodialysis Patients as Assessed by Aging Males' Symptoms Scores: A Pilot Study.American journal of men's health · 2018Trial
- Validity and Clinically Meaningful Changes in the Psychosexual Daily Questionnaire and Derogatis Interview for Sexual Function Assessment: Results From the Testosterone Trials.The journal of sexual medicine · 2018Trial
- Hormonal profiles of men with highly elevated SHBG and primary testicular dysfunction support free hormone hypothesis.Journal of the Endocrine Society · 2026Article
- Testosterone and cancers: biological functions, molecular mechanisms and therapy.Molecular cancer · 2026Review
- Seminal vesicles - an overlooked pair of accessory glands in male sexual dysfunction: a narrative review.International journal of impotence research · 2025Review
- Low Testosterone Among Males in Opioid Agonist Therapy and Its Association With Fatigue and Psychological Distress.Journal of the Endocrine Society · 2025Article
- Long-Term Testosterone Shows Cardiovascular Safety in Men With Testosterone Deficiency in Electronic Health Records.Journal of the Endocrine Society · 2025Article
- Risk factors for decreased libido in men at high-altitudes: a cross-sectional study.Sexual medicine · 2025Article
- Penile prosthesis implantation: a bibliometric-based visualization study.International journal of impotence research · 2025Article
- Day-to-day associations between testosterone, sexual desire and courtship efforts in young men.Proceedings. Biological sciences · 2024Article
- Clomiphene Citrate Treatment as an Alternative Therapeutic Approach for Male Hypogonadism: Mechanisms and Clinical Implications.Pharmaceuticals (Basel, Switzerland) · 2024Review
- Testosterone deficiency promotes arterial stiffening independent of sex chromosome complement.Biology of sex differences · 2024Article
- Androgen Deprivation Therapy for Prostate Cancer: Focus on Cognitive Function and Mood.Medicina (Kaunas, Lithuania) · 2023Review
- The Effect of Testosterone Replacement on Sexual Function in the Elderly: A Systematic Review and Meta-Analysis.The world journal of men's health · 2023Article
- Approach to the Patient: The Evaluation and Management of Men ≥50 Years With Low Serum Testosterone Concentration.The Journal of clinical endocrinology and metabolism · 2023Article
- Low androgen levels induce ferroptosis of rat penile cavernous endothelial cells.Sexual medicine · 2023Article
Corrections and comments
- Commented on by
- Commented on by
Authors and funding
28 authors.
Glenn R CunninghamDepartments of Medicine and Molecular and Cellular Biology (G.R.C.), Division of Diabetes, Endocrinology and Metabolism, Baylor College of Medicine and Baylor St. Luke's Medical Center, Houston, Texas 77030; Department of Biostatistics and Epidemiology (A.J.S.-S., J.T.F., B.Z., X.H., S.S.E.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; New England Research Institutes, Inc (R.C.R.), Watertown, Massachusetts 02472; Division of Endocrinology (C.W., R.S.S.), Harbor-University of California at Los Angeles Medical Center and Los Angeles Biomedical Research Institute, Torrance, California 90502; Research Program in Men's Health: Aging and Metabolism (S.Bh., S.Ba.), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115; Geriatric Research, Education, and Clinical Center (A.M.M.), Department of Veterans Affairs Puget Sound Health Care System, and Division of Gerontology & Geriatric Medicine, Department of Internal Medicine, University of Washington School of Medicine, Seattle, Washington 98108-1597; Department of Urology (J.K.P.), Moores Comprehensive Cancer Center, University of California, San Diego, California 92093; Division of Geriatric Medicine (T.M.G.), Yale School of Medicine, New Haven, Connecticut 06510; Division of Endocrinology, Metabolism, and Molecular Medicine (M.E.M.), and Department of Medical Social Sciences (D.C.), Northwestern University, Feinberg School of Medicine, Chicago, Illinois 60611; Division of Epidemiology (E.B.-C.), Department of Family and Preventive Medicine, University of California, San Diego School of Medicine, La Jolla, California 92093-0607; Department of Epidemiology (J.A.C.), University of Pittsburgh, Graduate School of Public Health, Pittsburgh, Pennsylvania 15261; Center for Clinical Epidemiology and Biostatistics (D.C., L.G.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; Divisions of Endocrinology and Geriatrics (
Alisa J Stephens-ShieldsDepartments of Medicine and Molecular and Cellular Biology (G.R.C.), Division of Diabetes, Endocrinology and Metabolism, Baylor College of Medicine and Baylor St. Luke's Medical Center, Houston, Texas 77030; Department of Biostatistics and Epidemiology (A.J.S.-S., J.T.F., B.Z., X.H., S.S.E.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; New England Research Institutes, Inc (R.C.R.), Watertown, Massachusetts 02472; Division of Endocrinology (C.W., R.S.S.), Harbor-University of California at Los Angeles Medical Center and Los Angeles Biomedical Research Institute, Torrance, California 90502; Research Program in Men's Health: Aging and Metabolism (S.Bh., S.Ba.), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115; Geriatric Research, Education, and Clinical Center (A.M.M.), Department of Veterans Affairs Puget Sound Health Care System, and Division of Gerontology & Geriatric Medicine, Department of Internal Medicine, University of Washington School of Medicine, Seattle, Washington 98108-1597; Department of Urology (J.K.P.), Moores Comprehensive Cancer Center, University of California, San Diego, California 92093; Division of Geriatric Medicine (T.M.G.), Yale School of Medicine, New Haven, Connecticut 06510; Division of Endocrinology, Metabolism, and Molecular Medicine (M.E.M.), and Department of Medical Social Sciences (D.C.), Northwestern University, Feinberg School of Medicine, Chicago, Illinois 60611; Division of Epidemiology (E.B.-C.), Department of Family and Preventive Medicine, University of California, San Diego School of Medicine, La Jolla, California 92093-0607; Department of Epidemiology (J.A.C.), University of Pittsburgh, Graduate School of Public Health, Pittsburgh, Pennsylvania 15261; Center for Clinical Epidemiology and Biostatistics (D.C., L.G.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; Divisions of Endocrinology and Geriatrics (
Raymond C RosenDepartments of Medicine and Molecular and Cellular Biology (G.R.C.), Division of Diabetes, Endocrinology and Metabolism, Baylor College of Medicine and Baylor St. Luke's Medical Center, Houston, Texas 77030; Department of Biostatistics and Epidemiology (A.J.S.-S., J.T.F., B.Z., X.H., S.S.E.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; New England Research Institutes, Inc (R.C.R.), Watertown, Massachusetts 02472; Division of Endocrinology (C.W., R.S.S.), Harbor-University of California at Los Angeles Medical Center and Los Angeles Biomedical Research Institute, Torrance, California 90502; Research Program in Men's Health: Aging and Metabolism (S.Bh., S.Ba.), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115; Geriatric Research, Education, and Clinical Center (A.M.M.), Department of Veterans Affairs Puget Sound Health Care System, and Division of Gerontology & Geriatric Medicine, Department of Internal Medicine, University of Washington School of Medicine, Seattle, Washington 98108-1597; Department of Urology (J.K.P.), Moores Comprehensive Cancer Center, University of California, San Diego, California 92093; Division of Geriatric Medicine (T.M.G.), Yale School of Medicine, New Haven, Connecticut 06510; Division of Endocrinology, Metabolism, and Molecular Medicine (M.E.M.), and Department of Medical Social Sciences (D.C.), Northwestern University, Feinberg School of Medicine, Chicago, Illinois 60611; Division of Epidemiology (E.B.-C.), Department of Family and Preventive Medicine, University of California, San Diego School of Medicine, La Jolla, California 92093-0607; Department of Epidemiology (J.A.C.), University of Pittsburgh, Graduate School of Public Health, Pittsburgh, Pennsylvania 15261; Center for Clinical Epidemiology and Biostatistics (D.C., L.G.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; Divisions of Endocrinology and Geriatrics (
Christina WangDepartments of Medicine and Molecular and Cellular Biology (G.R.C.), Division of Diabetes, Endocrinology and Metabolism, Baylor College of Medicine and Baylor St. Luke's Medical Center, Houston, Texas 77030; Department of Biostatistics and Epidemiology (A.J.S.-S., J.T.F., B.Z., X.H., S.S.E.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; New England Research Institutes, Inc (R.C.R.), Watertown, Massachusetts 02472; Division of Endocrinology (C.W., R.S.S.), Harbor-University of California at Los Angeles Medical Center and Los Angeles Biomedical Research Institute, Torrance, California 90502; Research Program in Men's Health: Aging and Metabolism (S.Bh., S.Ba.), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115; Geriatric Research, Education, and Clinical Center (A.M.M.), Department of Veterans Affairs Puget Sound Health Care System, and Division of Gerontology & Geriatric Medicine, Department of Internal Medicine, University of Washington School of Medicine, Seattle, Washington 98108-1597; Department of Urology (J.K.P.), Moores Comprehensive Cancer Center, University of California, San Diego, California 92093; Division of Geriatric Medicine (T.M.G.), Yale School of Medicine, New Haven, Connecticut 06510; Division of Endocrinology, Metabolism, and Molecular Medicine (M.E.M.), and Department of Medical Social Sciences (D.C.), Northwestern University, Feinberg School of Medicine, Chicago, Illinois 60611; Division of Epidemiology (E.B.-C.), Department of Family and Preventive Medicine, University of California, San Diego School of Medicine, La Jolla, California 92093-0607; Department of Epidemiology (J.A.C.), University of Pittsburgh, Graduate School of Public Health, Pittsburgh, Pennsylvania 15261; Center for Clinical Epidemiology and Biostatistics (D.C., L.G.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; Divisions of Endocrinology and Geriatrics (
Shalender BhasinDepartments of Medicine and Molecular and Cellular Biology (G.R.C.), Division of Diabetes, Endocrinology and Metabolism, Baylor College of Medicine and Baylor St. Luke's Medical Center, Houston, Texas 77030; Department of Biostatistics and Epidemiology (A.J.S.-S., J.T.F., B.Z., X.H., S.S.E.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; New England Research Institutes, Inc (R.C.R.), Watertown, Massachusetts 02472; Division of Endocrinology (C.W., R.S.S.), Harbor-University of California at Los Angeles Medical Center and Los Angeles Biomedical Research Institute, Torrance, California 90502; Research Program in Men's Health: Aging and Metabolism (S.Bh., S.Ba.), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115; Geriatric Research, Education, and Clinical Center (A.M.M.), Department of Veterans Affairs Puget Sound Health Care System, and Division of Gerontology & Geriatric Medicine, Department of Internal Medicine, University of Washington School of Medicine, Seattle, Washington 98108-1597; Department of Urology (J.K.P.), Moores Comprehensive Cancer Center, University of California, San Diego, California 92093; Division of Geriatric Medicine (T.M.G.), Yale School of Medicine, New Haven, Connecticut 06510; Division of Endocrinology, Metabolism, and Molecular Medicine (M.E.M.), and Department of Medical Social Sciences (D.C.), Northwestern University, Feinberg School of Medicine, Chicago, Illinois 60611; Division of Epidemiology (E.B.-C.), Department of Family and Preventive Medicine, University of California, San Diego School of Medicine, La Jolla, California 92093-0607; Department of Epidemiology (J.A.C.), University of Pittsburgh, Graduate School of Public Health, Pittsburgh, Pennsylvania 15261; Center for Clinical Epidemiology and Biostatistics (D.C., L.G.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; Divisions of Endocrinology and Geriatrics (
Alvin M MatsumotoDepartments of Medicine and Molecular and Cellular Biology (G.R.C.), Division of Diabetes, Endocrinology and Metabolism, Baylor College of Medicine and Baylor St. Luke's Medical Center, Houston, Texas 77030; Department of Biostatistics and Epidemiology (A.J.S.-S., J.T.F., B.Z., X.H., S.S.E.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; New England Research Institutes, Inc (R.C.R.), Watertown, Massachusetts 02472; Division of Endocrinology (C.W., R.S.S.), Harbor-University of California at Los Angeles Medical Center and Los Angeles Biomedical Research Institute, Torrance, California 90502; Research Program in Men's Health: Aging and Metabolism (S.Bh., S.Ba.), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115; Geriatric Research, Education, and Clinical Center (A.M.M.), Department of Veterans Affairs Puget Sound Health Care System, and Division of Gerontology & Geriatric Medicine, Department of Internal Medicine, University of Washington School of Medicine, Seattle, Washington 98108-1597; Department of Urology (J.K.P.), Moores Comprehensive Cancer Center, University of California, San Diego, California 92093; Division of Geriatric Medicine (T.M.G.), Yale School of Medicine, New Haven, Connecticut 06510; Division of Endocrinology, Metabolism, and Molecular Medicine (M.E.M.), and Department of Medical Social Sciences (D.C.), Northwestern University, Feinberg School of Medicine, Chicago, Illinois 60611; Division of Epidemiology (E.B.-C.), Department of Family and Preventive Medicine, University of California, San Diego School of Medicine, La Jolla, California 92093-0607; Department of Epidemiology (J.A.C.), University of Pittsburgh, Graduate School of Public Health, Pittsburgh, Pennsylvania 15261; Center for Clinical Epidemiology and Biostatistics (D.C., L.G.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; Divisions of Endocrinology and Geriatrics (
J Kellogg ParsonsDepartments of Medicine and Molecular and Cellular Biology (G.R.C.), Division of Diabetes, Endocrinology and Metabolism, Baylor College of Medicine and Baylor St. Luke's Medical Center, Houston, Texas 77030; Department of Biostatistics and Epidemiology (A.J.S.-S., J.T.F., B.Z., X.H., S.S.E.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; New England Research Institutes, Inc (R.C.R.), Watertown, Massachusetts 02472; Division of Endocrinology (C.W., R.S.S.), Harbor-University of California at Los Angeles Medical Center and Los Angeles Biomedical Research Institute, Torrance, California 90502; Research Program in Men's Health: Aging and Metabolism (S.Bh., S.Ba.), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115; Geriatric Research, Education, and Clinical Center (A.M.M.), Department of Veterans Affairs Puget Sound Health Care System, and Division of Gerontology & Geriatric Medicine, Department of Internal Medicine, University of Washington School of Medicine, Seattle, Washington 98108-1597; Department of Urology (J.K.P.), Moores Comprehensive Cancer Center, University of California, San Diego, California 92093; Division of Geriatric Medicine (T.M.G.), Yale School of Medicine, New Haven, Connecticut 06510; Division of Endocrinology, Metabolism, and Molecular Medicine (M.E.M.), and Department of Medical Social Sciences (D.C.), Northwestern University, Feinberg School of Medicine, Chicago, Illinois 60611; Division of Epidemiology (E.B.-C.), Department of Family and Preventive Medicine, University of California, San Diego School of Medicine, La Jolla, California 92093-0607; Department of Epidemiology (J.A.C.), University of Pittsburgh, Graduate School of Public Health, Pittsburgh, Pennsylvania 15261; Center for Clinical Epidemiology and Biostatistics (D.C., L.G.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; Divisions of Endocrinology and Geriatrics (
Thomas M GillDepartments of Medicine and Molecular and Cellular Biology (G.R.C.), Division of Diabetes, Endocrinology and Metabolism, Baylor College of Medicine and Baylor St. Luke's Medical Center, Houston, Texas 77030; Department of Biostatistics and Epidemiology (A.J.S.-S., J.T.F., B.Z., X.H., S.S.E.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; New England Research Institutes, Inc (R.C.R.), Watertown, Massachusetts 02472; Division of Endocrinology (C.W., R.S.S.), Harbor-University of California at Los Angeles Medical Center and Los Angeles Biomedical Research Institute, Torrance, California 90502; Research Program in Men's Health: Aging and Metabolism (S.Bh., S.Ba.), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115; Geriatric Research, Education, and Clinical Center (A.M.M.), Department of Veterans Affairs Puget Sound Health Care System, and Division of Gerontology & Geriatric Medicine, Department of Internal Medicine, University of Washington School of Medicine, Seattle, Washington 98108-1597; Department of Urology (J.K.P.), Moores Comprehensive Cancer Center, University of California, San Diego, California 92093; Division of Geriatric Medicine (T.M.G.), Yale School of Medicine, New Haven, Connecticut 06510; Division of Endocrinology, Metabolism, and Molecular Medicine (M.E.M.), and Department of Medical Social Sciences (D.C.), Northwestern University, Feinberg School of Medicine, Chicago, Illinois 60611; Division of Epidemiology (E.B.-C.), Department of Family and Preventive Medicine, University of California, San Diego School of Medicine, La Jolla, California 92093-0607; Department of Epidemiology (J.A.C.), University of Pittsburgh, Graduate School of Public Health, Pittsburgh, Pennsylvania 15261; Center for Clinical Epidemiology and Biostatistics (D.C., L.G.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; Divisions of Endocrinology and Geriatrics (
Mark E MolitchDepartments of Medicine and Molecular and Cellular Biology (G.R.C.), Division of Diabetes, Endocrinology and Metabolism, Baylor College of Medicine and Baylor St. Luke's Medical Center, Houston, Texas 77030; Department of Biostatistics and Epidemiology (A.J.S.-S., J.T.F., B.Z., X.H., S.S.E.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; New England Research Institutes, Inc (R.C.R.), Watertown, Massachusetts 02472; Division of Endocrinology (C.W., R.S.S.), Harbor-University of California at Los Angeles Medical Center and Los Angeles Biomedical Research Institute, Torrance, California 90502; Research Program in Men's Health: Aging and Metabolism (S.Bh., S.Ba.), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115; Geriatric Research, Education, and Clinical Center (A.M.M.), Department of Veterans Affairs Puget Sound Health Care System, and Division of Gerontology & Geriatric Medicine, Department of Internal Medicine, University of Washington School of Medicine, Seattle, Washington 98108-1597; Department of Urology (J.K.P.), Moores Comprehensive Cancer Center, University of California, San Diego, California 92093; Division of Geriatric Medicine (T.M.G.), Yale School of Medicine, New Haven, Connecticut 06510; Division of Endocrinology, Metabolism, and Molecular Medicine (M.E.M.), and Department of Medical Social Sciences (D.C.), Northwestern University, Feinberg School of Medicine, Chicago, Illinois 60611; Division of Epidemiology (E.B.-C.), Department of Family and Preventive Medicine, University of California, San Diego School of Medicine, La Jolla, California 92093-0607; Department of Epidemiology (J.A.C.), University of Pittsburgh, Graduate School of Public Health, Pittsburgh, Pennsylvania 15261; Center for Clinical Epidemiology and Biostatistics (D.C., L.G.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; Divisions of Endocrinology and Geriatrics (
John T FarrarDepartments of Medicine and Molecular and Cellular Biology (G.R.C.), Division of Diabetes, Endocrinology and Metabolism, Baylor College of Medicine and Baylor St. Luke's Medical Center, Houston, Texas 77030; Department of Biostatistics and Epidemiology (A.J.S.-S., J.T.F., B.Z., X.H., S.S.E.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; New England Research Institutes, Inc (R.C.R.), Watertown, Massachusetts 02472; Division of Endocrinology (C.W., R.S.S.), Harbor-University of California at Los Angeles Medical Center and Los Angeles Biomedical Research Institute, Torrance, California 90502; Research Program in Men's Health: Aging and Metabolism (S.Bh., S.Ba.), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115; Geriatric Research, Education, and Clinical Center (A.M.M.), Department of Veterans Affairs Puget Sound Health Care System, and Division of Gerontology & Geriatric Medicine, Department of Internal Medicine, University of Washington School of Medicine, Seattle, Washington 98108-1597; Department of Urology (J.K.P.), Moores Comprehensive Cancer Center, University of California, San Diego, California 92093; Division of Geriatric Medicine (T.M.G.), Yale School of Medicine, New Haven, Connecticut 06510; Division of Endocrinology, Metabolism, and Molecular Medicine (M.E.M.), and Department of Medical Social Sciences (D.C.), Northwestern University, Feinberg School of Medicine, Chicago, Illinois 60611; Division of Epidemiology (E.B.-C.), Department of Family and Preventive Medicine, University of California, San Diego School of Medicine, La Jolla, California 92093-0607; Department of Epidemiology (J.A.C.), University of Pittsburgh, Graduate School of Public Health, Pittsburgh, Pennsylvania 15261; Center for Clinical Epidemiology and Biostatistics (D.C., L.G.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; Divisions of Endocrinology and Geriatrics (
David CellaDepartments of Medicine and Molecular and Cellular Biology (G.R.C.), Division of Diabetes, Endocrinology and Metabolism, Baylor College of Medicine and Baylor St. Luke's Medical Center, Houston, Texas 77030; Department of Biostatistics and Epidemiology (A.J.S.-S., J.T.F., B.Z., X.H., S.S.E.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; New England Research Institutes, Inc (R.C.R.), Watertown, Massachusetts 02472; Division of Endocrinology (C.W., R.S.S.), Harbor-University of California at Los Angeles Medical Center and Los Angeles Biomedical Research Institute, Torrance, California 90502; Research Program in Men's Health: Aging and Metabolism (S.Bh., S.Ba.), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115; Geriatric Research, Education, and Clinical Center (A.M.M.), Department of Veterans Affairs Puget Sound Health Care System, and Division of Gerontology & Geriatric Medicine, Department of Internal Medicine, University of Washington School of Medicine, Seattle, Washington 98108-1597; Department of Urology (J.K.P.), Moores Comprehensive Cancer Center, University of California, San Diego, California 92093; Division of Geriatric Medicine (T.M.G.), Yale School of Medicine, New Haven, Connecticut 06510; Division of Endocrinology, Metabolism, and Molecular Medicine (M.E.M.), and Department of Medical Social Sciences (D.C.), Northwestern University, Feinberg School of Medicine, Chicago, Illinois 60611; Division of Epidemiology (E.B.-C.), Department of Family and Preventive Medicine, University of California, San Diego School of Medicine, La Jolla, California 92093-0607; Department of Epidemiology (J.A.C.), University of Pittsburgh, Graduate School of Public Health, Pittsburgh, Pennsylvania 15261; Center for Clinical Epidemiology and Biostatistics (D.C., L.G.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; Divisions of Endocrinology and Geriatrics (
Elizabeth Barrett-ConnorDepartments of Medicine and Molecular and Cellular Biology (G.R.C.), Division of Diabetes, Endocrinology and Metabolism, Baylor College of Medicine and Baylor St. Luke's Medical Center, Houston, Texas 77030; Department of Biostatistics and Epidemiology (A.J.S.-S., J.T.F., B.Z., X.H., S.S.E.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; New England Research Institutes, Inc (R.C.R.), Watertown, Massachusetts 02472; Division of Endocrinology (C.W., R.S.S.), Harbor-University of California at Los Angeles Medical Center and Los Angeles Biomedical Research Institute, Torrance, California 90502; Research Program in Men's Health: Aging and Metabolism (S.Bh., S.Ba.), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115; Geriatric Research, Education, and Clinical Center (A.M.M.), Department of Veterans Affairs Puget Sound Health Care System, and Division of Gerontology & Geriatric Medicine, Department of Internal Medicine, University of Washington School of Medicine, Seattle, Washington 98108-1597; Department of Urology (J.K.P.), Moores Comprehensive Cancer Center, University of California, San Diego, California 92093; Division of Geriatric Medicine (T.M.G.), Yale School of Medicine, New Haven, Connecticut 06510; Division of Endocrinology, Metabolism, and Molecular Medicine (M.E.M.), and Department of Medical Social Sciences (D.C.), Northwestern University, Feinberg School of Medicine, Chicago, Illinois 60611; Division of Epidemiology (E.B.-C.), Department of Family and Preventive Medicine, University of California, San Diego School of Medicine, La Jolla, California 92093-0607; Department of Epidemiology (J.A.C.), University of Pittsburgh, Graduate School of Public Health, Pittsburgh, Pennsylvania 15261; Center for Clinical Epidemiology and Biostatistics (D.C., L.G.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; Divisions of Endocrinology and Geriatrics (
Jane A CauleyDepartments of Medicine and Molecular and Cellular Biology (G.R.C.), Division of Diabetes, Endocrinology and Metabolism, Baylor College of Medicine and Baylor St. Luke's Medical Center, Houston, Texas 77030; Department of Biostatistics and Epidemiology (A.J.S.-S., J.T.F., B.Z., X.H., S.S.E.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; New England Research Institutes, Inc (R.C.R.), Watertown, Massachusetts 02472; Division of Endocrinology (C.W., R.S.S.), Harbor-University of California at Los Angeles Medical Center and Los Angeles Biomedical Research Institute, Torrance, California 90502; Research Program in Men's Health: Aging and Metabolism (S.Bh., S.Ba.), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115; Geriatric Research, Education, and Clinical Center (A.M.M.), Department of Veterans Affairs Puget Sound Health Care System, and Division of Gerontology & Geriatric Medicine, Department of Internal Medicine, University of Washington School of Medicine, Seattle, Washington 98108-1597; Department of Urology (J.K.P.), Moores Comprehensive Cancer Center, University of California, San Diego, California 92093; Division of Geriatric Medicine (T.M.G.), Yale School of Medicine, New Haven, Connecticut 06510; Division of Endocrinology, Metabolism, and Molecular Medicine (M.E.M.), and Department of Medical Social Sciences (D.C.), Northwestern University, Feinberg School of Medicine, Chicago, Illinois 60611; Division of Epidemiology (E.B.-C.), Department of Family and Preventive Medicine, University of California, San Diego School of Medicine, La Jolla, California 92093-0607; Department of Epidemiology (J.A.C.), University of Pittsburgh, Graduate School of Public Health, Pittsburgh, Pennsylvania 15261; Center for Clinical Epidemiology and Biostatistics (D.C., L.G.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; Divisions of Endocrinology and Geriatrics (
Denise CifelliDepartments of Medicine and Molecular and Cellular Biology (G.R.C.), Division of Diabetes, Endocrinology and Metabolism, Baylor College of Medicine and Baylor St. Luke's Medical Center, Houston, Texas 77030; Department of Biostatistics and Epidemiology (A.J.S.-S., J.T.F., B.Z., X.H., S.S.E.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; New England Research Institutes, Inc (R.C.R.), Watertown, Massachusetts 02472; Division of Endocrinology (C.W., R.S.S.), Harbor-University of California at Los Angeles Medical Center and Los Angeles Biomedical Research Institute, Torrance, California 90502; Research Program in Men's Health: Aging and Metabolism (S.Bh., S.Ba.), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115; Geriatric Research, Education, and Clinical Center (A.M.M.), Department of Veterans Affairs Puget Sound Health Care System, and Division of Gerontology & Geriatric Medicine, Department of Internal Medicine, University of Washington School of Medicine, Seattle, Washington 98108-1597; Department of Urology (J.K.P.), Moores Comprehensive Cancer Center, University of California, San Diego, California 92093; Division of Geriatric Medicine (T.M.G.), Yale School of Medicine, New Haven, Connecticut 06510; Division of Endocrinology, Metabolism, and Molecular Medicine (M.E.M.), and Department of Medical Social Sciences (D.C.), Northwestern University, Feinberg School of Medicine, Chicago, Illinois 60611; Division of Epidemiology (E.B.-C.), Department of Family and Preventive Medicine, University of California, San Diego School of Medicine, La Jolla, California 92093-0607; Department of Epidemiology (J.A.C.), University of Pittsburgh, Graduate School of Public Health, Pittsburgh, Pennsylvania 15261; Center for Clinical Epidemiology and Biostatistics (D.C., L.G.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; Divisions of Endocrinology and Geriatrics (
Jill P CrandallDepartments of Medicine and Molecular and Cellular Biology (G.R.C.), Division of Diabetes, Endocrinology and Metabolism, Baylor College of Medicine and Baylor St. Luke's Medical Center, Houston, Texas 77030; Department of Biostatistics and Epidemiology (A.J.S.-S., J.T.F., B.Z., X.H., S.S.E.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; New England Research Institutes, Inc (R.C.R.), Watertown, Massachusetts 02472; Division of Endocrinology (C.W., R.S.S.), Harbor-University of California at Los Angeles Medical Center and Los Angeles Biomedical Research Institute, Torrance, California 90502; Research Program in Men's Health: Aging and Metabolism (S.Bh., S.Ba.), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115; Geriatric Research, Education, and Clinical Center (A.M.M.), Department of Veterans Affairs Puget Sound Health Care System, and Division of Gerontology & Geriatric Medicine, Department of Internal Medicine, University of Washington School of Medicine, Seattle, Washington 98108-1597; Department of Urology (J.K.P.), Moores Comprehensive Cancer Center, University of California, San Diego, California 92093; Division of Geriatric Medicine (T.M.G.), Yale School of Medicine, New Haven, Connecticut 06510; Division of Endocrinology, Metabolism, and Molecular Medicine (M.E.M.), and Department of Medical Social Sciences (D.C.), Northwestern University, Feinberg School of Medicine, Chicago, Illinois 60611; Division of Epidemiology (E.B.-C.), Department of Family and Preventive Medicine, University of California, San Diego School of Medicine, La Jolla, California 92093-0607; Department of Epidemiology (J.A.C.), University of Pittsburgh, Graduate School of Public Health, Pittsburgh, Pennsylvania 15261; Center for Clinical Epidemiology and Biostatistics (D.C., L.G.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; Divisions of Endocrinology and Geriatrics (
Kristine E EnsrudDepartments of Medicine and Molecular and Cellular Biology (G.R.C.), Division of Diabetes, Endocrinology and Metabolism, Baylor College of Medicine and Baylor St. Luke's Medical Center, Houston, Texas 77030; Department of Biostatistics and Epidemiology (A.J.S.-S., J.T.F., B.Z., X.H., S.S.E.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; New England Research Institutes, Inc (R.C.R.), Watertown, Massachusetts 02472; Division of Endocrinology (C.W., R.S.S.), Harbor-University of California at Los Angeles Medical Center and Los Angeles Biomedical Research Institute, Torrance, California 90502; Research Program in Men's Health: Aging and Metabolism (S.Bh., S.Ba.), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115; Geriatric Research, Education, and Clinical Center (A.M.M.), Department of Veterans Affairs Puget Sound Health Care System, and Division of Gerontology & Geriatric Medicine, Department of Internal Medicine, University of Washington School of Medicine, Seattle, Washington 98108-1597; Department of Urology (J.K.P.), Moores Comprehensive Cancer Center, University of California, San Diego, California 92093; Division of Geriatric Medicine (T.M.G.), Yale School of Medicine, New Haven, Connecticut 06510; Division of Endocrinology, Metabolism, and Molecular Medicine (M.E.M.), and Department of Medical Social Sciences (D.C.), Northwestern University, Feinberg School of Medicine, Chicago, Illinois 60611; Division of Epidemiology (E.B.-C.), Department of Family and Preventive Medicine, University of California, San Diego School of Medicine, La Jolla, California 92093-0607; Department of Epidemiology (J.A.C.), University of Pittsburgh, Graduate School of Public Health, Pittsburgh, Pennsylvania 15261; Center for Clinical Epidemiology and Biostatistics (D.C., L.G.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; Divisions of Endocrinology and Geriatrics (
Laura GallagherDepartments of Medicine and Molecular and Cellular Biology (G.R.C.), Division of Diabetes, Endocrinology and Metabolism, Baylor College of Medicine and Baylor St. Luke's Medical Center, Houston, Texas 77030; Department of Biostatistics and Epidemiology (A.J.S.-S., J.T.F., B.Z., X.H., S.S.E.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; New England Research Institutes, Inc (R.C.R.), Watertown, Massachusetts 02472; Division of Endocrinology (C.W., R.S.S.), Harbor-University of California at Los Angeles Medical Center and Los Angeles Biomedical Research Institute, Torrance, California 90502; Research Program in Men's Health: Aging and Metabolism (S.Bh., S.Ba.), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115; Geriatric Research, Education, and Clinical Center (A.M.M.), Department of Veterans Affairs Puget Sound Health Care System, and Division of Gerontology & Geriatric Medicine, Department of Internal Medicine, University of Washington School of Medicine, Seattle, Washington 98108-1597; Department of Urology (J.K.P.), Moores Comprehensive Cancer Center, University of California, San Diego, California 92093; Division of Geriatric Medicine (T.M.G.), Yale School of Medicine, New Haven, Connecticut 06510; Division of Endocrinology, Metabolism, and Molecular Medicine (M.E.M.), and Department of Medical Social Sciences (D.C.), Northwestern University, Feinberg School of Medicine, Chicago, Illinois 60611; Division of Epidemiology (E.B.-C.), Department of Family and Preventive Medicine, University of California, San Diego School of Medicine, La Jolla, California 92093-0607; Department of Epidemiology (J.A.C.), University of Pittsburgh, Graduate School of Public Health, Pittsburgh, Pennsylvania 15261; Center for Clinical Epidemiology and Biostatistics (D.C., L.G.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; Divisions of Endocrinology and Geriatrics (
Bret ZeldowDepartments of Medicine and Molecular and Cellular Biology (G.R.C.), Division of Diabetes, Endocrinology and Metabolism, Baylor College of Medicine and Baylor St. Luke's Medical Center, Houston, Texas 77030; Department of Biostatistics and Epidemiology (A.J.S.-S., J.T.F., B.Z., X.H., S.S.E.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; New England Research Institutes, Inc (R.C.R.), Watertown, Massachusetts 02472; Division of Endocrinology (C.W., R.S.S.), Harbor-University of California at Los Angeles Medical Center and Los Angeles Biomedical Research Institute, Torrance, California 90502; Research Program in Men's Health: Aging and Metabolism (S.Bh., S.Ba.), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115; Geriatric Research, Education, and Clinical Center (A.M.M.), Department of Veterans Affairs Puget Sound Health Care System, and Division of Gerontology & Geriatric Medicine, Department of Internal Medicine, University of Washington School of Medicine, Seattle, Washington 98108-1597; Department of Urology (J.K.P.), Moores Comprehensive Cancer Center, University of California, San Diego, California 92093; Division of Geriatric Medicine (T.M.G.), Yale School of Medicine, New Haven, Connecticut 06510; Division of Endocrinology, Metabolism, and Molecular Medicine (M.E.M.), and Department of Medical Social Sciences (D.C.), Northwestern University, Feinberg School of Medicine, Chicago, Illinois 60611; Division of Epidemiology (E.B.-C.), Department of Family and Preventive Medicine, University of California, San Diego School of Medicine, La Jolla, California 92093-0607; Department of Epidemiology (J.A.C.), University of Pittsburgh, Graduate School of Public Health, Pittsburgh, Pennsylvania 15261; Center for Clinical Epidemiology and Biostatistics (D.C., L.G.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; Divisions of Endocrinology and Geriatrics (
Cora E LewisDepartments of Medicine and Molecular and Cellular Biology (G.R.C.), Division of Diabetes, Endocrinology and Metabolism, Baylor College of Medicine and Baylor St. Luke's Medical Center, Houston, Texas 77030; Department of Biostatistics and Epidemiology (A.J.S.-S., J.T.F., B.Z., X.H., S.S.E.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; New England Research Institutes, Inc (R.C.R.), Watertown, Massachusetts 02472; Division of Endocrinology (C.W., R.S.S.), Harbor-University of California at Los Angeles Medical Center and Los Angeles Biomedical Research Institute, Torrance, California 90502; Research Program in Men's Health: Aging and Metabolism (S.Bh., S.Ba.), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115; Geriatric Research, Education, and Clinical Center (A.M.M.), Department of Veterans Affairs Puget Sound Health Care System, and Division of Gerontology & Geriatric Medicine, Department of Internal Medicine, University of Washington School of Medicine, Seattle, Washington 98108-1597; Department of Urology (J.K.P.), Moores Comprehensive Cancer Center, University of California, San Diego, California 92093; Division of Geriatric Medicine (T.M.G.), Yale School of Medicine, New Haven, Connecticut 06510; Division of Endocrinology, Metabolism, and Molecular Medicine (M.E.M.), and Department of Medical Social Sciences (D.C.), Northwestern University, Feinberg School of Medicine, Chicago, Illinois 60611; Division of Epidemiology (E.B.-C.), Department of Family and Preventive Medicine, University of California, San Diego School of Medicine, La Jolla, California 92093-0607; Department of Epidemiology (J.A.C.), University of Pittsburgh, Graduate School of Public Health, Pittsburgh, Pennsylvania 15261; Center for Clinical Epidemiology and Biostatistics (D.C., L.G.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; Divisions of Endocrinology and Geriatrics (
Marco PahorDepartments of Medicine and Molecular and Cellular Biology (G.R.C.), Division of Diabetes, Endocrinology and Metabolism, Baylor College of Medicine and Baylor St. Luke's Medical Center, Houston, Texas 77030; Department of Biostatistics and Epidemiology (A.J.S.-S., J.T.F., B.Z., X.H., S.S.E.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; New England Research Institutes, Inc (R.C.R.), Watertown, Massachusetts 02472; Division of Endocrinology (C.W., R.S.S.), Harbor-University of California at Los Angeles Medical Center and Los Angeles Biomedical Research Institute, Torrance, California 90502; Research Program in Men's Health: Aging and Metabolism (S.Bh., S.Ba.), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115; Geriatric Research, Education, and Clinical Center (A.M.M.), Department of Veterans Affairs Puget Sound Health Care System, and Division of Gerontology & Geriatric Medicine, Department of Internal Medicine, University of Washington School of Medicine, Seattle, Washington 98108-1597; Department of Urology (J.K.P.), Moores Comprehensive Cancer Center, University of California, San Diego, California 92093; Division of Geriatric Medicine (T.M.G.), Yale School of Medicine, New Haven, Connecticut 06510; Division of Endocrinology, Metabolism, and Molecular Medicine (M.E.M.), and Department of Medical Social Sciences (D.C.), Northwestern University, Feinberg School of Medicine, Chicago, Illinois 60611; Division of Epidemiology (E.B.-C.), Department of Family and Preventive Medicine, University of California, San Diego School of Medicine, La Jolla, California 92093-0607; Department of Epidemiology (J.A.C.), University of Pittsburgh, Graduate School of Public Health, Pittsburgh, Pennsylvania 15261; Center for Clinical Epidemiology and Biostatistics (D.C., L.G.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; Divisions of Endocrinology and Geriatrics (
Ronald S SwerdloffDepartments of Medicine and Molecular and Cellular Biology (G.R.C.), Division of Diabetes, Endocrinology and Metabolism, Baylor College of Medicine and Baylor St. Luke's Medical Center, Houston, Texas 77030; Department of Biostatistics and Epidemiology (A.J.S.-S., J.T.F., B.Z., X.H., S.S.E.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; New England Research Institutes, Inc (R.C.R.), Watertown, Massachusetts 02472; Division of Endocrinology (C.W., R.S.S.), Harbor-University of California at Los Angeles Medical Center and Los Angeles Biomedical Research Institute, Torrance, California 90502; Research Program in Men's Health: Aging and Metabolism (S.Bh., S.Ba.), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115; Geriatric Research, Education, and Clinical Center (A.M.M.), Department of Veterans Affairs Puget Sound Health Care System, and Division of Gerontology & Geriatric Medicine, Department of Internal Medicine, University of Washington School of Medicine, Seattle, Washington 98108-1597; Department of Urology (J.K.P.), Moores Comprehensive Cancer Center, University of California, San Diego, California 92093; Division of Geriatric Medicine (T.M.G.), Yale School of Medicine, New Haven, Connecticut 06510; Division of Endocrinology, Metabolism, and Molecular Medicine (M.E.M.), and Department of Medical Social Sciences (D.C.), Northwestern University, Feinberg School of Medicine, Chicago, Illinois 60611; Division of Epidemiology (E.B.-C.), Department of Family and Preventive Medicine, University of California, San Diego School of Medicine, La Jolla, California 92093-0607; Department of Epidemiology (J.A.C.), University of Pittsburgh, Graduate School of Public Health, Pittsburgh, Pennsylvania 15261; Center for Clinical Epidemiology and Biostatistics (D.C., L.G.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; Divisions of Endocrinology and Geriatrics (
Xiaoling HouDepartments of Medicine and Molecular and Cellular Biology (G.R.C.), Division of Diabetes, Endocrinology and Metabolism, Baylor College of Medicine and Baylor St. Luke's Medical Center, Houston, Texas 77030; Department of Biostatistics and Epidemiology (A.J.S.-S., J.T.F., B.Z., X.H., S.S.E.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; New England Research Institutes, Inc (R.C.R.), Watertown, Massachusetts 02472; Division of Endocrinology (C.W., R.S.S.), Harbor-University of California at Los Angeles Medical Center and Los Angeles Biomedical Research Institute, Torrance, California 90502; Research Program in Men's Health: Aging and Metabolism (S.Bh., S.Ba.), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115; Geriatric Research, Education, and Clinical Center (A.M.M.), Department of Veterans Affairs Puget Sound Health Care System, and Division of Gerontology & Geriatric Medicine, Department of Internal Medicine, University of Washington School of Medicine, Seattle, Washington 98108-1597; Department of Urology (J.K.P.), Moores Comprehensive Cancer Center, University of California, San Diego, California 92093; Division of Geriatric Medicine (T.M.G.), Yale School of Medicine, New Haven, Connecticut 06510; Division of Endocrinology, Metabolism, and Molecular Medicine (M.E.M.), and Department of Medical Social Sciences (D.C.), Northwestern University, Feinberg School of Medicine, Chicago, Illinois 60611; Division of Epidemiology (E.B.-C.), Department of Family and Preventive Medicine, University of California, San Diego School of Medicine, La Jolla, California 92093-0607; Department of Epidemiology (J.A.C.), University of Pittsburgh, Graduate School of Public Health, Pittsburgh, Pennsylvania 15261; Center for Clinical Epidemiology and Biostatistics (D.C., L.G.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; Divisions of Endocrinology and Geriatrics (
Stephen AntonDepartments of Medicine and Molecular and Cellular Biology (G.R.C.), Division of Diabetes, Endocrinology and Metabolism, Baylor College of Medicine and Baylor St. Luke's Medical Center, Houston, Texas 77030; Department of Biostatistics and Epidemiology (A.J.S.-S., J.T.F., B.Z., X.H., S.S.E.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; New England Research Institutes, Inc (R.C.R.), Watertown, Massachusetts 02472; Division of Endocrinology (C.W., R.S.S.), Harbor-University of California at Los Angeles Medical Center and Los Angeles Biomedical Research Institute, Torrance, California 90502; Research Program in Men's Health: Aging and Metabolism (S.Bh., S.Ba.), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115; Geriatric Research, Education, and Clinical Center (A.M.M.), Department of Veterans Affairs Puget Sound Health Care System, and Division of Gerontology & Geriatric Medicine, Department of Internal Medicine, University of Washington School of Medicine, Seattle, Washington 98108-1597; Department of Urology (J.K.P.), Moores Comprehensive Cancer Center, University of California, San Diego, California 92093; Division of Geriatric Medicine (T.M.G.), Yale School of Medicine, New Haven, Connecticut 06510; Division of Endocrinology, Metabolism, and Molecular Medicine (M.E.M.), and Department of Medical Social Sciences (D.C.), Northwestern University, Feinberg School of Medicine, Chicago, Illinois 60611; Division of Epidemiology (E.B.-C.), Department of Family and Preventive Medicine, University of California, San Diego School of Medicine, La Jolla, California 92093-0607; Department of Epidemiology (J.A.C.), University of Pittsburgh, Graduate School of Public Health, Pittsburgh, Pennsylvania 15261; Center for Clinical Epidemiology and Biostatistics (D.C., L.G.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; Divisions of Endocrinology and Geriatrics (
Shehzad BasariaDepartments of Medicine and Molecular and Cellular Biology (G.R.C.), Division of Diabetes, Endocrinology and Metabolism, Baylor College of Medicine and Baylor St. Luke's Medical Center, Houston, Texas 77030; Department of Biostatistics and Epidemiology (A.J.S.-S., J.T.F., B.Z., X.H., S.S.E.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; New England Research Institutes, Inc (R.C.R.), Watertown, Massachusetts 02472; Division of Endocrinology (C.W., R.S.S.), Harbor-University of California at Los Angeles Medical Center and Los Angeles Biomedical Research Institute, Torrance, California 90502; Research Program in Men's Health: Aging and Metabolism (S.Bh., S.Ba.), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115; Geriatric Research, Education, and Clinical Center (A.M.M.), Department of Veterans Affairs Puget Sound Health Care System, and Division of Gerontology & Geriatric Medicine, Department of Internal Medicine, University of Washington School of Medicine, Seattle, Washington 98108-1597; Department of Urology (J.K.P.), Moores Comprehensive Cancer Center, University of California, San Diego, California 92093; Division of Geriatric Medicine (T.M.G.), Yale School of Medicine, New Haven, Connecticut 06510; Division of Endocrinology, Metabolism, and Molecular Medicine (M.E.M.), and Department of Medical Social Sciences (D.C.), Northwestern University, Feinberg School of Medicine, Chicago, Illinois 60611; Division of Epidemiology (E.B.-C.), Department of Family and Preventive Medicine, University of California, San Diego School of Medicine, La Jolla, California 92093-0607; Department of Epidemiology (J.A.C.), University of Pittsburgh, Graduate School of Public Health, Pittsburgh, Pennsylvania 15261; Center for Clinical Epidemiology and Biostatistics (D.C., L.G.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; Divisions of Endocrinology and Geriatrics (
Susan J DiemDepartments of Medicine and Molecular and Cellular Biology (G.R.C.), Division of Diabetes, Endocrinology and Metabolism, Baylor College of Medicine and Baylor St. Luke's Medical Center, Houston, Texas 77030; Department of Biostatistics and Epidemiology (A.J.S.-S., J.T.F., B.Z., X.H., S.S.E.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; New England Research Institutes, Inc (R.C.R.), Watertown, Massachusetts 02472; Division of Endocrinology (C.W., R.S.S.), Harbor-University of California at Los Angeles Medical Center and Los Angeles Biomedical Research Institute, Torrance, California 90502; Research Program in Men's Health: Aging and Metabolism (S.Bh., S.Ba.), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115; Geriatric Research, Education, and Clinical Center (A.M.M.), Department of Veterans Affairs Puget Sound Health Care System, and Division of Gerontology & Geriatric Medicine, Department of Internal Medicine, University of Washington School of Medicine, Seattle, Washington 98108-1597; Department of Urology (J.K.P.), Moores Comprehensive Cancer Center, University of California, San Diego, California 92093; Division of Geriatric Medicine (T.M.G.), Yale School of Medicine, New Haven, Connecticut 06510; Division of Endocrinology, Metabolism, and Molecular Medicine (M.E.M.), and Department of Medical Social Sciences (D.C.), Northwestern University, Feinberg School of Medicine, Chicago, Illinois 60611; Division of Epidemiology (E.B.-C.), Department of Family and Preventive Medicine, University of California, San Diego School of Medicine, La Jolla, California 92093-0607; Department of Epidemiology (J.A.C.), University of Pittsburgh, Graduate School of Public Health, Pittsburgh, Pennsylvania 15261; Center for Clinical Epidemiology and Biostatistics (D.C., L.G.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; Divisions of Endocrinology and Geriatrics (
Vafa TabatabaieDepartments of Medicine and Molecular and Cellular Biology (G.R.C.), Division of Diabetes, Endocrinology and Metabolism, Baylor College of Medicine and Baylor St. Luke's Medical Center, Houston, Texas 77030; Department of Biostatistics and Epidemiology (A.J.S.-S., J.T.F., B.Z., X.H., S.S.E.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; New England Research Institutes, Inc (R.C.R.), Watertown, Massachusetts 02472; Division of Endocrinology (C.W., R.S.S.), Harbor-University of California at Los Angeles Medical Center and Los Angeles Biomedical Research Institute, Torrance, California 90502; Research Program in Men's Health: Aging and Metabolism (S.Bh., S.Ba.), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115; Geriatric Research, Education, and Clinical Center (A.M.M.), Department of Veterans Affairs Puget Sound Health Care System, and Division of Gerontology & Geriatric Medicine, Department of Internal Medicine, University of Washington School of Medicine, Seattle, Washington 98108-1597; Department of Urology (J.K.P.), Moores Comprehensive Cancer Center, University of California, San Diego, California 92093; Division of Geriatric Medicine (T.M.G.), Yale School of Medicine, New Haven, Connecticut 06510; Division of Endocrinology, Metabolism, and Molecular Medicine (M.E.M.), and Department of Medical Social Sciences (D.C.), Northwestern University, Feinberg School of Medicine, Chicago, Illinois 60611; Division of Epidemiology (E.B.-C.), Department of Family and Preventive Medicine, University of California, San Diego School of Medicine, La Jolla, California 92093-0607; Department of Epidemiology (J.A.C.), University of Pittsburgh, Graduate School of Public Health, Pittsburgh, Pennsylvania 15261; Center for Clinical Epidemiology and Biostatistics (D.C., L.G.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; Divisions of Endocrinology and Geriatrics (
Susan S EllenbergDepartments of Medicine and Molecular and Cellular Biology (G.R.C.), Division of Diabetes, Endocrinology and Metabolism, Baylor College of Medicine and Baylor St. Luke's Medical Center, Houston, Texas 77030; Department of Biostatistics and Epidemiology (A.J.S.-S., J.T.F., B.Z., X.H., S.S.E.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; New England Research Institutes, Inc (R.C.R.), Watertown, Massachusetts 02472; Division of Endocrinology (C.W., R.S.S.), Harbor-University of California at Los Angeles Medical Center and Los Angeles Biomedical Research Institute, Torrance, California 90502; Research Program in Men's Health: Aging and Metabolism (S.Bh., S.Ba.), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115; Geriatric Research, Education, and Clinical Center (A.M.M.), Department of Veterans Affairs Puget Sound Health Care System, and Division of Gerontology & Geriatric Medicine, Department of Internal Medicine, University of Washington School of Medicine, Seattle, Washington 98108-1597; Department of Urology (J.K.P.), Moores Comprehensive Cancer Center, University of California, San Diego, California 92093; Division of Geriatric Medicine (T.M.G.), Yale School of Medicine, New Haven, Connecticut 06510; Division of Endocrinology, Metabolism, and Molecular Medicine (M.E.M.), and Department of Medical Social Sciences (D.C.), Northwestern University, Feinberg School of Medicine, Chicago, Illinois 60611; Division of Epidemiology (E.B.-C.), Department of Family and Preventive Medicine, University of California, San Diego School of Medicine, La Jolla, California 92093-0607; Department of Epidemiology (J.A.C.), University of Pittsburgh, Graduate School of Public Health, Pittsburgh, Pennsylvania 15261; Center for Clinical Epidemiology and Biostatistics (D.C., L.G.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; Divisions of Endocrinology and Geriatrics (
Peter J SnyderDepartments of Medicine and Molecular and Cellular Biology (G.R.C.), Division of Diabetes, Endocrinology and Metabolism, Baylor College of Medicine and Baylor St. Luke's Medical Center, Houston, Texas 77030; Department of Biostatistics and Epidemiology (A.J.S.-S., J.T.F., B.Z., X.H., S.S.E.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; New England Research Institutes, Inc (R.C.R.), Watertown, Massachusetts 02472; Division of Endocrinology (C.W., R.S.S.), Harbor-University of California at Los Angeles Medical Center and Los Angeles Biomedical Research Institute, Torrance, California 90502; Research Program in Men's Health: Aging and Metabolism (S.Bh., S.Ba.), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115; Geriatric Research, Education, and Clinical Center (A.M.M.), Department of Veterans Affairs Puget Sound Health Care System, and Division of Gerontology & Geriatric Medicine, Department of Internal Medicine, University of Washington School of Medicine, Seattle, Washington 98108-1597; Department of Urology (J.K.P.), Moores Comprehensive Cancer Center, University of California, San Diego, California 92093; Division of Geriatric Medicine (T.M.G.), Yale School of Medicine, New Haven, Connecticut 06510; Division of Endocrinology, Metabolism, and Molecular Medicine (M.E.M.), and Department of Medical Social Sciences (D.C.), Northwestern University, Feinberg School of Medicine, Chicago, Illinois 60611; Division of Epidemiology (E.B.-C.), Department of Family and Preventive Medicine, University of California, San Diego School of Medicine, La Jolla, California 92093-0607; Department of Epidemiology (J.A.C.), University of Pittsburgh, Graduate School of Public Health, Pittsburgh, Pennsylvania 15261; Center for Clinical Epidemiology and Biostatistics (D.C., L.G.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; Divisions of Endocrinology and Geriatrics (
Funding
Yale Clinical and Translational Science Award (U Component)UL1TR001863 · NCATS · YALE UNIVERSITY · PI John H. Krystal, LUCILA OHNO-MACHADO · 2016 to 2026
$102.9MUCLA Clinical and Translational Science InstituteUL1TR000124 · NCATS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI DUBINETT, STEVEN M. · 2012 to 2015
$57.0MYale Study Support Suite (YES3): Dashboard and Web Portal Software Supporting Research Workflow through integrated, customizable REDCap External ModulesP30AG021342 · NIA · YALE UNIVERSITY · PI Albert C Shaw · 2002 to 2026
$37.9MTestosterone TrialU01AG030644 · NIA · UNIVERSITY OF PENNSYLVANIA · PI SNYDER, PETER J. · 2009 to 2015
$32.4MYale University Clinical and Translational Science Award ProgramUL1TR000142 · NCATS · YALE UNIVERSITY · PI SHERWIN, ROBERT S · 2012 to 2015
$31.8MUniversity of Florida Older Americans Independence Center (OAIC)P30AG028740 · NIA · UNIVERSITY OF FLORIDA · PI Peihua Qiu · 2007 to 2026
$22.8MCore-010UL1TR001073 · NCATS · ALBERT EINSTEIN COLLEGE OF MEDICINE, INC · PI KELLER, MARLA J, SHAMOON, HARRY · 2013 to 2017
$21.3MUniversity of Alabama at Birmingham's Diabetes Research CenterP30DK079626 · NIDDK · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI Kirk Michael Habegger · 2013 to 2026
$19.5MUAB Diabetes Research and Training CenterP60DK079626 · NIDDK · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI GARVEY, W TIMOTHY · 2008 to 2012
$8.4MResearch Training in Disability &Disabling DisordersK24AG021507 · NIA · YALE UNIVERSITY · PI GILL, THOMAS MICHAEL · 2003 to 2012
$1.6MNCATS NIH HHS UL1 TR000124NCATS NIH HHS UL1 TR000142NIA NIH HHS K24 AG021507NIA NIH HHS P30 AG021342NIA NIH HHS U01 AG030644NIDDK NIH HHS P30 DK079626NIDDK NIH HHS P60 DK079626
Abstract
contextThe Testosterone Trials are a coordinated set of seven trials to determine the efficacy of T in symptomatic men ≥65 years old with unequivocally low T levels. Initial results of the Sexual Function Trial showed that T improved sexual activity, sexual desire, and erectile function.
objectiveTo assess the responsiveness of specific sexual activities to T treatment; to relate hormone changes to changes in sexual function; and to determine predictive baseline characteristics and T threshold for sexual outcomes.
designA placebo-controlled trial.
settingTwelve academic medical centers in the United States.
participantsA total of 470 men ≥65 years of age with low libido, average T <275 ng/dL, and a partner willing to have sexual intercourse at least twice a month.
methodsMen were assigned to take T gel or placebo for 1 year. Sexual function was assessed by three questionnaires every 3 months: the Psychosexual Daily Questionnaire, the Derogatis Interview for Sexual Function, and the International Index of Erectile Function.
resultsCompared with placebo, T administration significantly improved 10 of 12 measures of sexual activity. Incremental increases in total and free T and estradiol levels were associated with improvements in sexual activity and desire, but not erectile function. No threshold T level was observed for any outcome, and none of the 27 baseline characteristics predicted responsiveness to T.
conclusionsIn older men with low libido and low T levels, improvements in sexual desire and activity in response to T treatment were related to the magnitude of increases in T and estradiol levels, but there was no clear evidence of a threshold effect.
Indexed as
AgedErectile DysfunctionHormone Replacement TherapyHumansLibidoMalePlacebosSexual BehaviorSexual Dysfunction, PhysiologicalSurveys and QuestionnairesTestosteroneTreatment OutcomePlacebosTestosterone
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Registered trials
NCT04601233ClinicalTrials.gov
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.