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The effect of breastfeeding on postpartum glucose tolerance and lipid profiles in women with gestational diabetes mellitus

Authors
  • Shub, Alexis1, 2
  • Miranda, Manisha1, 2
  • Georgiou, Harry M.1
  • McCarthy, Elizabeth A.1, 2
  • Lappas, Martha1
  • 1 University of Melbourne, Department of Obstetrics and Gynecology, Parkville, Victoria, Australia , Parkville (Australia)
  • 2 Mercy Hospital for Women, Perinatal Department, Heidelberg, Victoria, Australia , Heidelberg (Australia)
Type
Published Article
Journal
International Breastfeeding Journal
Publisher
Springer (Biomed Central Ltd.)
Publication Date
Nov 04, 2019
Volume
14
Issue
1
Identifiers
DOI: 10.1186/s13006-019-0238-5
Source
Springer Nature
Keywords
License
Green

Abstract

BackgroundWe aimed to investigate the association of breastfeeding on postpartum glucose levels and lipid profiles in women diagnosed with gestational diabetes mellitus (GDM) and women without GDM.MethodsWe performed a secondary analysis of a cohort study of 243 women, 159 women with GDM and 84 normally glucose tolerant women between 2012 and 2017. At approximately 6–10 weeks postpartum, we measured fasting blood glucose and plasma lipid levels. Breastfeeding behaviour was self-defined as exclusive breastfeeding or not exclusive breastfeeding.ResultsThe mean (SD) glucose in the group of women who breastfed exclusively was 4.6 (0.49) mmol/L, compared to 4.9 (0.58) mmol/L (95% CI 0.45, 0.15, p < 0.001) among women who did not exclusively breastfeed. Among women with GDM, the reduction in fasting glucose in women who were breastfeeding was 0.22 mmol/L (95% CI 0.39, 0.05, p = 0.004), and in women who were not GDM, the reduction was 0.14 mmol/L (95% CI 0.37, 0.09, p = 0.24,). After adjustment for GDM status in pregnancy, maternal body mass index (BMI), maternal age and ethnicity, and exclusive breastfeeding was associated with a decreased fasting glucose of 0.19 (95% CI 0.318, 0.061, p = 0.004). After similar adjustment, there was no significant difference in triglycerides, high density lipoprotein cholesterol or low-density lipoprotein cholesterol between women who were breastfeeding and women who were not breastfeeding.ConclusionsBreastfeeding is associated with a reduction in fasting glucose levels postpartum, but not maternal lipid profile. Breastfeeding may play a role in reducing glucose intolerance in women who have had GDM.

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