Evidence map›Paper›PMID 29502087›Full record

Trial reportBMJ open2018

Prediabetes in pregnancy, can early intervention improve outcomes? A feasibility study for a parallel randomised clinical trial.

Ruth C E Hughes, Janet Rowan, Jonathan Williman

Open access · goldAbstract readMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in BMJ open, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.4field-weighted citation impact, top 18% 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

9 citing papers in PubMed, 24 citations in OpenAlex.

  1. Review
  2. Time to Move Beyond a Binary Criterion for Gestational Diabetes?Reproductive sciences (Thousand Oaks, Calif.) · 2024
    Review
  3. Electronic Monitoring Of Mom's Schedule (eMOMSPreventive medicine reports · 2023
    Article
  4. Review
  5. Article
  6. Review
  7. Review
  8. Review
  9. An Update on Screening Strategies for Gestational Diabetes Mellitus: A Narrative Review.Diabetes, metabolic syndrome and obesity : targets and therapy · 2021
    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

3 authors at 1 institution in 1 country.

Ruth C E HughesDepartment of Obstetrics and Gynaecology, University of Otago, Christchurch, New Zealand.
Janet RowanDepartment of Obstetrics, National Women's Health, Auckland, New Zealand.
Jonathan WillimanBiostatistics and Computational Biology Unit, University of Otago, Christchurch, New Zealand.
University of Otago · NZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveMeasurement of glycated haemoglobin (HbA1c) in early pregnancy is routine in New Zealand to identify women with diabetes and prediabetes. However, the benefit of early intervention in women with prediabetes is inconclusive. Our aim was to test the feasibility of a two-arm parallel randomised controlled trial of standard care versus early intervention in pregnancies complicated by prediabetes.

settingTwo tertiary referral centres in New Zealand.

participantsWomen <14 weeks' gestation and HbA1c ≥5.9%-6.4% (41-46 mmol/mol) measured at booking, without pre-existing diabetes.

interventionsRandomisation was done by remote web-based allocation into one of two groups. Women in the early intervention group attended an antenatal diabetes clinic, commenced daily home blood glucose monitoring, and medication was prescribed if lifestyle measures failed to maintain target blood glucose levels. Controls received lifestyle education, continued standard care with their midwife and/or obstetrician, and were asked to perform a 75 g oral glucose tolerance test at 24 weeks' gestation with a referral to clinic if this test was positive. Both groups received lifestyle questionnaires at recruitment and in late pregnancy. OUTCOME MEASURES: Recruitment rate, adherence to protocol and validation of potential primary outcomes.

resultsRecruitment rates were lower than expected, especially in Māori and Pacific women. Non-adherence to allocated treatment protocol was significant, 42% (95% CI 24% to 61%) in the early intervention group and 30% (95% CI 16% to 51%) in controls. Caesarean section and pre-eclampsia were signalled as potential primary outcomes, due to both the high observed incidence in the control group and ease of measurement.

conclusionsFor a future definitive trial, extending the gestation of eligibility and stepped-wedge cluster randomisation may overcome the identified feasibility issues. Consistent with published observational data, pre-eclampsia and emergency caesarean section could be included as primary outcome measures, both of which have a significant impact on maternal and neonatal morbidity and healthcare costs. TRIAL REGISTRATION NUMBER: ACTRN12615000904572; Pre-results.

Indexed as

AdultBlood Glucose Self-MonitoringCesarean SectionEarly Medical InterventionFeasibility StudiesFemaleGestational AgeGlucose Tolerance TestGlycated HemoglobinHumansLife StyleNew ZealandPatient CompliancePrediabetic StatePre-EclampsiaPregnancyGlycated Hemoglobinantenataldiabetes In pregnancyfeasibilityglycated hemoglobinHba1cprediabetes

Identifiers

PMID29502087
PMCPMC5855392
OpenAlexW2793508962

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.