Evidence map›Paper›PMID 26354094›Full record

ArticleFertility and sterility2015

Predictors of participant retention in infertility treatment trials.

Hongying Kuang, Susan Jin, Tracey Thomas, Lawrence Engmann, Karl R Hansen, Christos Coutifaris, Peter Casson, Gregory Christman, Ruben Alvero, Nanette Santoro and 5 more

3 registry-linked trialsAbstract read
In one paragraph

Article in Fertility and sterility, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 3 registered trials, which are not on this map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
–field-weighted citation impact
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.

NCT00068861 phase3completednot on this map

Pregnancy in Polycystic Ovary Syndrome: A 30 Week Double-Blind Randomized Trial of Clomiphene Citrate, Metformin XR, and Combined Clomiphene Citrate/Metformin XR For the Treatment of Infertility in Women With Polycystic Ovary Syndrome

TypeinterventionalSponsorEunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)Ran2002 to 2006Enrolled678ConditionsPolycystic Ovary Syndrome, Infertility, PregnancyArmsmetformin XR, clomiphene citrate
NCT00719186 phase3completednot on this map

A 20 Week Double-Blind Randomized Trial of Clomiphene Citrate and Letrozole for the Treatment of Infertility in Women With Polycystic Ovary Syndrome

TypeinterventionalSponsorYale UniversityRan2009 to 2013Enrolled750ConditionsPregnancy, Polycystic Ovary SyndromeArmsClomiphene citrate, Letrozole
NCT01044862 phase3completednot on this map

Assessment of Multiple Intrauterine Gestations From Ovarian Stimulation

TypeinterventionalSponsorYale UniversityRan2010 to 2014Enrolled900ConditionsPregnancy, Unexplained InfertilityArmsLetrozole (aromatase inhibitor), Clomiphene Citrate, Follicle Stimulating Hormone (gonadotropin)
3 · Its place in the literature

Who cites it

5 citing papers in PubMed.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. The significant impact of education, poverty, and race on Internet-based research participant engagement.Genetics in medicine : official journal of the American College of Medical Genetics · 2017
    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

15 authors.

Hongying KuangDepartment of Obstetrics and Gynecology, First Affiliated Hospital and Heilongjiang University of Chinese Medicine, Harbin, People's Republic of China; Department of Biostatistics, Yale University School of Public Health, New Haven, Connecticut.
Susan JinDepartment of Biostatistics, Yale University School of Public Health, New Haven, Connecticut.
Tracey ThomasDepartment of Biostatistics, Yale University School of Public Health, New Haven, Connecticut.
Lawrence EngmannDepartment of Obstetrics and Gynecology, University of Connecticut School of Medicine, Farmington, Connecticut.
Karl R HansenDepartment of Obstetrics and Gynecology, University of Oklahoma College of Medicine, Oklahoma City, Oklahoma.
Christos CoutifarisDepartment of Obstetrics and Gynecology, University of Pennsylvania, Philadelphia, Pennsylvania.
Peter CassonDepartment of Obstetrics and Gynecology, University of Vermont, Burlington, Vermont.
Gregory ChristmanDepartment of Obstetrics and Gynecology, Shands Hospital, University of Florida, Gainesville, Florida.
Ruben AlveroDepartment of Obstetrics and Gynecology, University of Colorado, Aurora, Colorado.
Nanette SantoroDepartment of Obstetrics and Gynecology, University of Colorado, Aurora, Colorado.
Esther EisenbergEunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, Maryland.
Michael P DiamondDepartment of Obstetrics and Gynecology, Georgia Regents University, Augusta, Georgia.
Richard S LegroDepartment of Obstetrics and Gynecology, Penn State College of Medicine, Hershey, Pennsylvania.
Heping ZhangDepartment of Biostatistics, Yale University School of Public Health, New Haven, Connecticut. Electronic address: Heping.Zhang@yale.edu.
Reproductive Medicine Network

Funding

Data Coordination Center for the RMNU10HD055925 · NICHD · YALE UNIVERSITY · PI ZHANG, HEPING · 2007 to 2019
$39.2M
WRITING AND THE DAILY EXPERIENCE OF ILLNESSM01RR010732 · NCRR · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI LOHSE, BARBARA · 1995 to 2009
$29.8M
Testosterone-GnRH Frequency and the Evolution of PCOS in AdolescenceP50HD028934 · NICHD · UNIVERSITY OF VIRGINIA · PI HAISENLEDER, DANIEL J. · 2014 to 2018
$8.6M
COOPERATIVE MULTICENTER REPRODUCTIVE MEDICINE NETWORKU10HD027049 · NICHD · UNIVERSITY OF PENNSYLVANIA · PI COUTIFARIS, CHRISTOS · 1990 to 2017
$5.2M
GHSU/WSU Cooperative Reproductive Medicine NetworkU10HD039005 · NICHD · WAYNE STATE UNIVERSITY · PI DIAMOND, MICHAEL PETER · 2000 to 2017
$5.2M
COOPERATIVE MULTICENTER REPRODUCTIVE MEDICINE NETWORKU10HD038992 · NICHD · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI LEGRO, RICHARD S. · 2000 to 2017
$5.0M
COOPERATIVE MULTICENTER REPRODUCTIVE MEDICINE NETWORKU10HD038998 · NICHD · UNIVERSITY OF COLORADO DENVER · PI POLOTSKY, ALEX JOEL · 2000 to 2015
$2.6M
The Clinical Research/Reproductive Scientist Training Program (CREST)R25HD075737 · NICHD · UNIVERSITY OF COLORADO DENVER · PI Nanette F. Santoro · 2013 to 2026
$2.3M
Cooperative Multicenter Reproductive Medicine Network (U10)U10HD055936 · NICHD · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI SMITH, YOLANDA R · 2007 to 2014
$2.1M
The Utility of Empiric Medical Treatment of Infertile Oligo-asthenospermic MenU10HD055944 · NICHD · UNIVERSITY OF VERMONT & ST AGRIC COLLEGE · PI MCGEE, ELIZABETH A · 2007 to 2013
$2.1M
Letrozole Therapy for IVF/ET: Effects on Multiple Pregnancy and Treatment BurdenU10HD055942 · NICHD · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI ROBINSON, RANDAL D. · 2007 to 2015
$1.7M
Luteal Progesterone Supplementation in Clomiphene Citrate-IUI CyclesU10HD077680 · NICHD · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI HANSEN, KARL RICHARD · 2013 to 2017
$1.5M
NCRR NIH HHS C06 RR016499NCRR NIH HHS C06RR016499NCRR NIH HHS M01 RR010732NCRR NIH HHS MO1RR10732NICHD NIH HHS P50 HD028934NICHD NIH HHS R01 HD029834NICHD NIH HHS R25 HD075737NICHD NIH HHS U10 HD027049NICHD NIH HHS U10 HD033172NICHD NIH HHS U10 HD038992NICHD NIH HHS U10 HD038998NICHD NIH HHS U10 HD039005NICHD NIH HHS U10 HD055925NICHD NIH HHS U10HD055925NICHD NIH HHS U10 HD055936NICHD NIH HHS U10 HD055942NICHD NIH HHS U10 HD055944NICHD NIH HHS U10 HD077680NICHD NIH HHS U10HD27049NICHD NIH HHS U10 HD33172NICHD NIH HHS U10 HD38992NICHD NIH HHS U10 HD38998NICHD NIH HHS U10 HD39005NICHD NIH HHS U54-HD29834
6 · The paper itself

Abstract

objectiveTo identify variables associated with retention (or dropout) in infertility clinical trials. Retention of subjects in randomized controlled clinical trials (RCTs) has received considerable attention, but there have been few consistent findings.

designSecondary analysis of data from RCTs.

settingAcademic medical centers. PATIENT(S): Women with polycystic ovary syndrome (PCOS) or couples with unexplained infertility, aged 18-40 years. INTERVENTION(S): This study is not an intervention study, but the patients in the original RCTs were treated with any or combination of metformin, clomiphene citrate (CC), letrozole, and gonadotropins. MAIN OUTCOME MEASURE(S): Successful retention versus dropout during the RCTs. RESULT(S): Race, ethnicity, body mass index (BMI), insurance coverage, history of smoking, and history of alcohol use were significantly associated with retention whether they were considered in bivariate analyses or a multivariable logistic model. Specifically, white race, higher income, having graduate degrees, normal weight, better insurance coverage, nonsmokers, and those who reported current use of alcohol at the start of the trial, had higher retention rates. CONCLUSION(S): We identified several additive and persistent predictors of retention that can be used to guide the conduct of RCTs and improve the retention rate. Given the limitation of our association analysis, methodologically sound and theoretically grounded research are warranted so that high quality data can be collected to improve our understanding on the causes of dropout. CLINICAL TRIAL REGISTRATION NUMBER: NCT00068861 (PPCOS-I), NCT00719186 (PPCOS-II), and NCT01044862 (AMIGOS).

Indexed as

Patient DropoutsPatient SelectionAcademic Medical CentersAdolescentAdultChi-Square DistributionDrug Therapy, CombinationFemaleFertilityFertility Agents, FemaleHumansInfertility, FemaleLogistic ModelsMaleMultivariate AnalysisOdds RatioFertility Agents, Femaledropoutlogistic regressionRandomized controlled clinical trialretention

Identifiers

PMID26354094
PMCPMC4630082

What OpenQuestion holds

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Read underepoch 390

Registered trials

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.