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Utility of antenatal clinical factors for prediction of postpartum outcomes in women with gestational diabetes mellitus (GDM)


Ingram, ER and Robertson, IK and Ogden, KJ and Dennis, AE and Campbell, JE and Corbould, AM, Utility of antenatal clinical factors for prediction of postpartum outcomes in women with gestational diabetes mellitus (GDM), Australian & New Zealand Journal of Obstetrics & Gynaecology, 57, (3) pp. 272-279. ISSN 0004-8666 (2017) [Refereed Article]

Copyright Statement

2016 The Royal Australian and New Zealand College of Obstetricians and Gynaecologists

DOI: doi:10.1111/ajo.12514


Background: Gestational diabetes mellitus (GDM) is associated with life-long increased risk of type 2 diabetes: affected women are advised to undergo oral glucose tolerance testing (OGTT) at 6-12 weeks postpartum, then glucose screening every 1-3 years.

Aims: We investigated whether in women with GDM, antenatal clinical factors predicted postpartum abnormal glucose tolerance and compliance with screening.

Materials and methods: In women with GDM delivering 2007 to mid-2009 in a single hospital, antenatal/obstetric data and glucose tests at 6-12 weeks postpartum and during 5.5 years post-pregnancy were retrospectively collected. Predictors of return for testing and abnormal glucose tolerance were identified using multivariate analysis.

Results: Of 165 women, 117 (70.9%) returned for 6-12 week postpartum OGTT: 23 (19.6%) were abnormal. Smoking and parity, independent of socioeconomic status, were associated with non-return for testing. Fasting glucose ≥ 5.4 mmol/L on pregnancy OGTT predicted both non-return for testing and abnormal OGTT. During 5.5 years post-pregnancy, 148 (89.7%) women accessed glucose screening: nine (6.1%) developed diabetes, 33 (22.3%) had impaired fasting glucose / impaired glucose tolerance. Predictors of abnormal glucose tolerance were fasting glucose ≥ 5.4 mmol/L and 2-h glucose ≥ 9.3 mmol/L on pregnancy OGTT (~2.5-fold increased risk), and polycystic ovary syndrome (~3.4 fold increased risk). Risk score calculation, based on combined antenatal factors, did not improve predictions.

Conclusions: Antenatal clinical factors were modestly predictive of return for testing and abnormal glucose tolerance post-pregnancy in women with GDM. Risk score calculations were ineffective in predicting outcomes: risk scores developed in other populations require validation. Ongoing glucose screening is indicated for all women with GDM.

Item Details

Item Type:Refereed Article
Keywords:gestational diabetes mellitus, postpartum screening, pregnancy care, type 2 diabetes mellitus
Research Division:Biomedical and Clinical Sciences
Research Group:Clinical sciences
Research Field:Endocrinology
Objective Division:Health
Objective Group:Clinical health
Objective Field:Clinical health not elsewhere classified
UTAS Author:Ingram, ER (Dr Emily Ingram)
UTAS Author:Robertson, IK (Dr Iain Robertson)
UTAS Author:Ogden, KJ (Dr Kathryn Ogden)
UTAS Author:Dennis, AE (Associate Professor Amanda Dennis)
UTAS Author:Corbould, AM (Dr Anne Corbould)
ID Code:111139
Year Published:2017 (online first 2016)
Web of Science® Times Cited:10
Deposited By:Medicine
Deposited On:2016-08-31
Last Modified:2022-06-15

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