Table 2.

The protective effect of high-intensity breastfeeding against the development of abnormal glucose tolerance during the first year (up to 14 months) postpartum

	Crude OR	95%CI	P value	Model Ia			Model IIb
				Adjusted OR	95% CI	P value	Adjusted OR	95% CI	P value
High- intensity breast- feeding	0.24	0.06, 0.75	0.013	0.18	0.039, 0.64	0.0077	0.20	0.040, 0.80	0.022

The reference of OR was the abnormal glucose tolerance prevalence in non-high-intensity breastfeeding women

OR odds ratio, CI confidence interval, BMI body mass index, OGTT oral glucose tolerance test

^aAdjusted for prepregnancy BMI and 2-h plasma glucose at the diagnostic OGTT during pregnancy

^bAdjusted for age, prepregnancy BMI, family history of diabetes, 2-h plasma glucose at diagnostic OGTT during pregnancy, diagnostic criteria, weight gain during pregnancy and weight change during postpartum