Abstract
Objective:
To investigate the effects of breastfeeding (BF) on metabolic-related outcomes in women with previous gestational diabetes mellitus.
Methods:
Databases, including PubMed, Embase, Cochrane Library, and Web of Science, were searched until March 5, 2020. Finally, 14 high-quality articles were included. Relative risk (RR) and weighted mean difference (WMD) with 95% confidence interval (CI) were pooled using Stata14.0 Software.
Results:
Subjects in the BF group had a lower incidence of diabetes (RR: 0.611, 95% CI: 0.452–0.826, p < 0.001) and lower fasting plasma glucose level (WMD: −4.762, 95% CI: −5.552 to −3.973, p < 0.001), fasting insulin level (WMD: −21.513, 95% CI: −37.594 to −5.431, p = 0.009), homeostasis model assessment of insulin resistance (HOMA-IR) (WMD: −1.107, 95% CI: −1.683 to −0.532, p < 0.001), and triglyceride level (WMD: −33.951, 95% CI: −50.714 to −17.189, p < 0.001) than those in the non-BF group. The high-density lipoprotein level (WMD: 3.855, 95% CI: 2.629–5.081, p < 0.001), low-density lipoprotein level (WMD: 4.223, 95% CI: 0.6712–7.774, p = 0.020), and insulin sensitivity index (WMD: 1.503, 95% CI: 0.857–2.160, p < 0.001) in the BF group were higher than that in the non-BF group. No difference was found in the 2-hour postprandial blood glucose (WMD: −3.804, 95% CI: −8.237 to 0.630, p = 0.093), incidence of prediabetes mellitus (RR: 0.870, 95% CI: 0.750–1.009, p = 0.065), or cholesterol level (WMD: 1.377, 95% CI: −8.178 to 10.931, p = 0.778) between the two groups.
Conclusion:
BF may improve several metabolic markers and decrease the risk of developing diabetes.
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