Evidence mapPaperPMID 32470456Full record

ArticleAmerican journal of obstetrics and gynecology2020

Two-day postpartum compared with 4- to 12-week postpartum glucose tolerance testing for women with gestational diabetes.

Erika F Werner, Phinarra Has, Dwight Rouse, Melissa A Clark

2 registry-linked trialsAbstract readComparative Study
PubMed Publisher
In one paragraph

Article in American journal of obstetrics and gynecology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
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.

NCT05280496 phase3completedstarted 2022, after this paper: background citation

Implementation of a Pragmatic Approach to Lower Diabetes Mellitus Risk After a Diagnosis of Gestational Diabetes Mellitus

Ran2022Enrolled20Registered outcomes4Posted comparisons0ConditionsDiabetes, Gestational, Diabetes Mellitus, Type 2, PrediabetesArmsMetformin
Open the trial in the graph
NCT06457139 nacompletednot on this mapstarted 2025, after this paper: background citation

Preventing Type 2 Diabetes Mellitus After Gestational Diabetes Mellitus With Immediate Postpartum Screening

TypeinterventionalSponsorUniversity of Massachusetts, WorcesterRan2025 to 2026Enrolled116ConditionsGestational Diabetes, Type 2 DiabetesArmsGlucose tolerance test (2 hour), Active Comparator
3 · Its place in the literature

Who cites it

20 citing papers in PubMed, 1 synthesis or guideline pooled it.

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  3. Receipt of postpartum diabetes screening after gestational diabetes mellitus in the United States, 2016-2022.Diabetic medicine : a journal of the British Diabetic Association · 2026
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  20. Gestational Diabetes: Overview with Emphasis on Medical Management.International journal of environmental research and public health · 2020
    Review
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

4 authors.

Erika F WernerDepartment of Obstetrics and Gynecology, Alpert Medical School of Brown University, Providence, RI. Electronic address: Erika_werner@brown.edu.
Phinarra HasDepartment of Obstetrics & Gynecology, Women and Infants Hospital, Providence, RI.
Dwight RouseDepartment of Obstetrics and Gynecology, Alpert Medical School of Brown University, Providence, RI; School of Public Health Brown University, Providence, RI.
Melissa A ClarkSchool of Public Health Brown University, Providence, RI.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundA majority of women in the United States with gestational diabetes mellitus do not undergo the recommended 4- to 12-week postpartum glucose tolerance test.

objectiveThis study aimed to compare the diagnostic value of the 2-day postpartum glucose tolerance test with the 4- to 12-week postpartum glucose tolerance test to identify impaired glucose metabolism at 1 year after delivery among women with gestational diabetes. STUDY

designPostpartum women who delivered at 1 hospital between January 2017 and July 2018 were offered enrollment in a prospective cohort if they had gestational diabetes mellitus diagnosed by Carpenter-Coustan criteria or a 1-hour glucose challenge test result of ≥200 mg/dL, spoke English or Spanish, and planned to remain in the hospital for at least 2 days after delivery. Participating women underwent a 75-gram 2-hour glucose tolerance test on postpartum day 2 and were incentivized to have a 4- to 12-week glucose tolerance test and measurement of glycosylated hemoglobin at 1 year after delivery. Participants and providers were blinded to the 2-day postpartum results. The diagnostic value of an abnormal 2-day postpartum glucose tolerance test (fasting result of ≥100 mg/dL or 2-hour glucose tolerance test result of ≥140 mg/dL) was compared with that of an abnormal 4- to 12-week glucose tolerance test to identify impaired glucose metabolism (≥5.7% glycosylated hemoglobin) and diabetes (≥6.5% glycosylated hemoglobin) at 1 year after delivery. Receiver operating characteristic (ROC) curves were also compared at 2 days and 4-12 weeks after delivery.

resultsOf the 300 recruited women, 296 (99%) completed the 2-day postpartum glucose tolerance test, and 202 (68%) returned for the 4- to 12-week glucose tolerance test. Approximately 1 year after delivery, 203 (68%) women had their glycosylated hemoglobin measured, of whom 35% had impaired glucose metabolism and 4% had diabetes. The study population was diverse (46% nonwhite). Furthermore, 56% were obese (mean body mass index, 32 kg/m

conclusionTwo-day postpartum glucose tolerance tests have similar diagnostic value as 4- to 12-week postpartum glucose tolerance tests in predicting impaired glucose metabolism and diabetes at 1 year after delivery and are associated with nearly 100% adherence to the test. Thus, changing the timing of the glucose tolerance test should be considered.

Indexed as

Glucose Tolerance TestPrenatal CareAdultCohort StudiesDiabetes, GestationalFemaleGlycated HemoglobinHumansPredictive Value of TestsPregnancyProspective StudiesTime FactorsGlycated Hemoglobindiabetesgestational diabeteshealth riskshyperglycemiaimpaired glucose tolerancepostpartum

Identifiers

What Socratic holds

Textmetadata
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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 Socratic graph.