ArticleDiabetologia2026
A prospective controlled study assessing postpartum breastfeeding in women with type 2 diabetes: lower rates associated with elevated BMI rather than diabetes.
Article in Diabetologia, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
aims/hypothesisBreastfeeding is associated with metabolic benefits for women with type 2 diabetes and their infants, yet breastfeeding rates in these women are poorly described. Obesity is associated with type 2 diabetes and lower breastfeeding rates, making it difficult to disentangle the effects of type 2 diabetes vs obesity on breastfeeding. The primary objective was to examine breastfeeding rates in women with type 2 diabetes compared with normoglycaemic women with either (1) matched BMI or (2) normal BMI. The secondary objective was to examine variables associated with breastfeeding.
methodsPregnant women with type 2 diabetes (cases) or normoglycaemia (controls) were prospectively recruited. Each case was matched with two controls by age and parity and either (1) matched or (2) normal (18-25 kg/m
resultsFour months of breastfeeding data were available for 29 women with type 2 diabetes, 29 BMI-matched controls and 28 normal-BMI controls. Breastfeeding rates were similar in women with type 2 diabetes and BMI-matched controls, but both rates were significantly lower than those in normal-BMI controls. 'Full' breastfeeding rates were 24%, 38% and 64% in women with type 2 diabetes, BMI-matched controls and normal-BMI controls, respectively, and were not different between women with type 2 diabetes vs BMI-matched controls (p=0.26) but were lower in women with type 2 diabetes vs normal-BMI controls (p=0.002). 'Any' breastfeeding rates were 55%, 54% and 82% in women with type 2 diabetes, BMI-matched controls and normal-BMI controls, respectively, again showing no difference between women with type 2 diabetes vs BMI-matched controls (p=0.79) but were lower in women with type 2 diabetes vs normal-BMI controls (p=0.03). CONCLUSIONS/
interpretationMaternal obesity, rather than type 2 diabetes, may be the major determinant of reduced breastfeeding rates 4 months postpartum.
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