Evidence map›Paper›PMID 30994570›Full record

Trial reportMenopause (New York, N.Y.)2019

Confirmatory factor analysis of the Insomnia Severity Index (ISI) and invariance across race: a pooled analysis of MsFLASH data.

Julie L Otte, Giorgos Bakoyannis, Kevin L Rand, Kristine E Ensrud, Katherine A Guthrie, Hadine Joffe, Susan M McCurry, Kathrine M Newton, Janet S Carpenter

Open access · greenAbstract readClinical Trial
In one paragraph

Trial report in Menopause (New York, N.Y.), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
2.0field-weighted citation impact, top 13% of its field
1 · What the graph read from it

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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 22 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Lights on MsFLASH: a review of contributions.Menopause (New York, N.Y.) · 2020
    Review
  11. Article
  12. Review
  13. Article
  14. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 6 institutions in 3 countries.

Julie L OtteSchool of Nursing, Indiana University, Indianapolis, IN.
Giorgos BakoyannisSchool of Nursing, Indiana University, Indianapolis, IN.
Kevin L RandDepartment of Psychology, School of Science, Indiana University-Purdue University Indianapolis, IN.
Kristine E EnsrudMedicine and Epidemiology and Community Health, University of Minnesota and Minneapolis VA Health Care System, Minneapolis, MN.
Katherine A GuthrieMsFLASH Data Coordinating Center, Fred Hutchinson Cancer Research Center, Seattle, WA.
Hadine JoffeConnors Center for Women's Health and Gender Biology, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston, MA.
Susan M McCurryDepartment of Psychosocial and Community Health, School of Nursing, University of Washington, Seattle, WA.
Kathrine M NewtonKaiser Permanente Washington Health Research Institute, Seattle, WA.
Janet S CarpenterSchool of Nursing, Indiana University, Indianapolis, IN.
Indiana University – Purdue University Indianapolis · USFred Hutch Cancer Center · USKaiser Permanente Washington Health Research Institute · USNovem (Netherlands) · NLUniversity of Minnesota · USUniversity of Washington · US

Funding

INDIANA CLINICAL AND TRANSLATIONAL SCIENCE INSTITUTE (UL1): BPCAUL1RR025761 · NCRR · INDIANA UNIVERSITY INDIANAPOLIS · PI SHEKHAR, ANANTHA · 2008 to 2011
$21.0M
Menopausal Symptoms Initiative-Finding Lasting Answers for Sweats and Hot FlashesU01AG032699 · NIA · FRED HUTCHINSON CANCER RESEARCH CENTER · PI GUTHRIE, KATHERINE ADAMS, LACROIX, ANDREA Z. · 2008 to 2012
$13.5M
MsFLASH: Living a Healthy MenopauseR01AG048209 · NIA · FRED HUTCHINSON CANCER RESEARCH CENTER · PI GUTHRIE, KATHERINE ADAMS, LACROIX, ANDREA Z. · 2015 to 2019
$7.2M
MSI-FLASH: Relative Efficacy of Hormonal and Non-Hormonal Interventions for VMSU01AG032700 · NIA · MASSACHUSETTS GENERAL HOSPITAL · PI COHEN, LEE S, JOFFE, HADINE · 2008 to 2012
$1.7M
MSI FLASH: An RCT of Yoga and Ultra Low-Dose Estrogen Gel for Vasomotor SymptomsU01AG032682 · NIA · KAISER FOUNDATION HEALTH PLAN OF WASHINGTON · PI NEWTON, KATHERINE M. · 2008 to 2012
$1.7M
MSI-FLASH: Paced Respiration for Breast Cancer SurvivorsU01AG032659 · NIA · INDIANA UNIVERSITY INDIANAPOLIS · PI CARPENTER, JANET S · 2008 to 2012
$1.5M
MSI-FLASH: An Exercise Intervention for Women with Menopausal SymptomsU01AG032669 · NIA · KAISER FOUNDATION RESEARCH INSTITUTE · PI CAAN, BETTE J · 2008 to 2012
$1.5M
Research and Training for Behavioral Oncology InterventionsK05CA175048 · NCI · INDIANA UNIVERSITY INDIANAPOLIS · PI CHAMPION, VICTORIA LEE · 2014 to 2018
$484k
NCI NIH HHS K05 CA175048NCRR NIH HHS UL1 RR025761NIA NIH HHS R01 AG048209NIA NIH HHS U01 AG032659NIA NIH HHS U01 AG032669NIA NIH HHS U01 AG032682NIA NIH HHS U01 AG032699NIA NIH HHS U01 AG032700
6 · The paper itself

Abstract

objectiveWomen's sleep at menopause is widely reported to be problematic. The Insomnia Severity Index (ISI) is a commonly used tool for quantifying sleep problems in clinical and research settings, but psychometric properties in postmenopausal women have not been reported. Our study aim was to examine the factor structure of the ISI in a large and diverse sample of midlife women with hot flashes.

methodsBaseline data were from 899 women enrolled in one of the three clinical trials using similar entry criteria conducted by the Menopause Strategies Finding Lasting Answers to Symptoms and Health research network. We conducted confirmatory factor analyses for the total sample and within strata defined by race/ethnicity (black and white women).

resultsThe ISI had two factors in the total sample. The two-factor structure was consistent across black and white women, with the exception of one item "difficulty falling asleep."

conclusionsThe ISI in midlife women with hot flashes is composed of two factors that capture dimensions of the insomnia severity and daytime impact. The instrument is a psychometrically sound scale appropriate for use in research and clinical practice to capture the severity and daytime impact of insomnia symptoms in diverse samples of midlife women with hot flashes. An abbreviated screening of two items could be considered to determine if further evaluation is needed of sleep complaints.

Indexed as

Severity of Illness IndexBlack or African AmericanFactor Analysis, StatisticalFemaleHot FlashesHumansMenopauseMiddle AgedSleepSleep Initiation and Maintenance DisordersWhite People

Identifiers

PMID30994570
PMCPMC6663566
OpenAlexW2940806507

What OpenQuestion holds

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Registered trials

None linked

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.