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Association of maternal Vitamin D status with glucose tolerance and caesarean section in a multi-ethnic Asian cohort: The growing up in Singapore towards healthy outcomes study

  • the GUSTO Study Group
  • KK Research Centre
  • KK Women's and Children's Hospital
  • Duke-National University of Singapore Medical School
  • Allergy Service
  • School of Psychology
  • University of New South Wales
  • Agency for Science, Technology and Research, Singapore
  • Department of Obstetrics and Gynaecology
  • National University of Singapore
  • Division of Obstetrics and Gynaecology
  • Department of Maternal Fetal Medicine
  • Developmental Epigenetics Group
  • The University of Auckland
  • MRC Lifecourse Epidemiology Unit
  • NIHR Southampton Biomedical Research Centre
  • University Hospital Southampton NHS Foundation Trust
  • Saw Swee Hock School of Public Health
  • Institute for Social Medicine
  • Charité – Universitätsmedizin Berlin
  • Department of Ophthalmology
  • Department of Pediatrics
  • Department of Reproductive Medicine
  • Department of Neonatology
  • Department of Biomedical Engineering
  • Clinical Imaging Research Centre
  • Singapore National Eye Center
  • Department of Diagnostic Radiology
  • Dental Service
  • Department of Opthalmology
  • National University Hospital
  • Department of Preventive Dentistry
  • MRC Life-course Epidemiology Unit
  • University of Southampton
  • Mental Wellness Service
  • Department of Paediatrics
  • Department of Psychology
  • School of Social Sciences
  • Singapore Management University
  • Department of Diagnostic Imaging
  • Growth
  • Program in Neuroscience and Behavioral Disorders
  • Division of Sleep and Circadian Disorders
  • Brigham and Women’s Hospital
  • Division of Sleep Medicine
  • Harvard University
  • Department of Neonatology
  • Department of Diagnostic Imaging
  • Department of Psychiatry and Neurology and Neurosurgery
  • McGill University
  • Respiratory Medicine Service
  • Life Sciences Institute
  • Division of Paediatric Neurology
  • MOH Holdings Pte Ltd.
  • Department of Child Development
  • Department of Nutrition and Dietetics
  • Center for Quantitative Medicine
  • Department for International Health
  • Tampere University
  • Medicine Dean's Office

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

Objective Epidemiological studies relating maternal 25-hydroxyvitamin D (25OHD) with gestational diabetes mellitus (GDM) and mode of delivery have shown controversial results. We examined if maternal 25OHD status was associated with plasma glucose concentrations, risks of GDM and caesarean section in the Growing Up in Singapore Towards healthy Outcomes (GUSTO) study. Methods Plasma 25OHD concentrations, fasting glucose (FG) and 2-hour postprandial glucose (2HPPG) concentrations were measured in 940 women from a Singapore mother-offspring cohort study at 26-28 weeks' gestation. 25OHD inadequacy and adequacy were defined based on concentrations of 25OHD ≤75nmol/l and >75nmol/l respectively. Mode of delivery was obtained from hospital records. Multiple linear regression was performed to examine the association between 25OHD status and glucose concentrations, while multiple logistic regression was performed to examine the association of 25OHD status with risks of GDM and caesarean section. Results In total, 388 (41.3%) women had 25OHD inadequacy. Of these, 131 (33.8%), 155 (39.9%) and 102 (26.3%) were Chinese, Malay and Indian respectively. After adjustment for confounders, maternal 25OHD inadequacy was associated with higher FG concentrations (β = 0.08mmol/l, 95% Confidence Interval (CI) = 0.01, 0.14), but not 2HPPG concentrations and risk of GDM. A trend between 25OHD inadequacy and higher likelihood of emergency caesarean section (Odds Ratio (OR) = 1.39, 95% CI = 0.95, 2.05) was observed. On stratification by ethnicity, the association with higher FG concentrations was significant in Malay women (β = 0.19mmol/l, 95% CI = 0.04, 0.33), while risk of emergency caesarean section was greater in Chinese (OR = 1.90, 95% CI = 1.06, 3.43) and Indian women (OR = 2.41, 95% CI = 1.01, 5.73). Conclusions 25OHD inadequacy is prevalent in pregnant Singaporean women, particularly among the Malay and Indian women. This is associated with higher FG concentrations in Malay women, and increased risk of emergency caesarean section in Chinese and Indian women.

Original languageEnglish
Article numbere0142239
JournalPLoS ONE
Volume10
Issue number11
DOIs
Publication statusPublished - 1 Nov 2015
Externally publishedYes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

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