Résumé
Aims: Obesity increases risk of gestational diabetes mellitus (GDM) and GDM increases risk of macrosomia but their inter-relations for increased risk of macrosomia remain uncertain. We aimed to examine associations between prepregnancy overweight and macrosomia, and synergistic effects between prepregnancy overweight and GDM on macrosomia. Methods: From 2010 to 2012, 19,622 women in urban Tianjin, China, underwent a 50-g 1-h glucose challenge test (GCT) at 24–28 gestational weeks and followed by a 75-g 2-h oral glucose tolerance test (OGTT) if the GCT value was ≥ 7.8 mmol/L. GDM was defined according to International Association of Diabetes and Pregnancy Study Group's criteria. Overweight was defined as body mass index ≥ 24.0 kg/m2. Logistic regression was performed to obtain odds ratios (ORs) and 95% confidence intervals (CIs). Additive interaction between prepregnancy overweight and GDM was used to test synergistic effects. Results: In the cohort, 1791 (9.1%) and 1726 (8.8%) of the women delivered a macrosomic infant or a large-for-gestational-age (LGA) infant, respectively. Prepregnancy overweight was associated with increased risk of macrosomia and LGA with adjusted ORs being 2.29 (95%CI: 2.07–2.54) and 2.27 (2.05–2.52), respectively. Copresence of prepregnancy overweight and GDM greatly enhanced the adjusted ORs of overweight alone (ORs for macrosomia and LGA: 2.17, 1.94–2.42 & 2.21,1.98–2.47) and GDM alone (ORs for macrosomia and LGA: 2.01,1.48–2.72 & 2.14, 1.60–2.87) for macrosomia and LGA to 5.29 (4.07–6.87) for macrosomia and 4.72 (3.66–6.10) for LGA, with significant additive interactions. Conclusions: Prepregnancy overweight increased the risks of macrosomia and LGA independently and synergistically with GDM.
Langue d'origine | English |
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Pages (de-à) | 82-89 |
Nombre de pages | 8 |
Journal | Diabetes Research and Clinical Practice |
Volume | 154 |
DOI | |
Statut de publication | Published - août 2019 |
Note bibliographique
Funding Information:The authors would like to express our special thanks to obstetricians and other health professionals in the 64 primary care hospitals and 6 district women and children's health care institutes who were involved in the setting up of the cohort. X.Y. conceived and designed the study. W.Y. analyzed the data and wrote the first draft, J.L. H.L. Y.W. J.L. and S.W. provided the study material and patients, collected and assembly the data; All other authors gave critical comments on the manuscript; X.Y. (the corresponding authors) and W.Y. (the first author) take full responsibility for the work as a whole, including the study design, access to data, and the decision to submit and publish the manuscript. All authors have read and approved the submission of the manuscript; the manuscript has not been published and is not being considered for publication elsewhere, in whole or in part, in any language. This study was supported by the National Key Research and Development Program of China (Grant number: 2018YFC1313903) and National Natural Science Foundation of China (Grant number: 81870549).
Publisher Copyright:
© 2019 Elsevier B.V.
ASJC Scopus Subject Areas
- Internal Medicine
- Endocrinology, Diabetes and Metabolism
- Endocrinology
PubMed: MeSH publication types
- Journal Article