. 2015 Apr 1;10(3):163–167. doi: 10.1089/bfm.2014.0116

Table 3.

Association of Breastfeeding and Maternal Diabetes Among 9,128 Parous Women in Beijing, China

	Model 1		Model 2		Model 3		Model 4
	Crude OR	95% CI	Adjusted OR	95% CI	Adjusted OR	95% CI	Adjusted OR	95% CI
Breastfeeding
No	1.00	0.89, 1.13	1.05	0.93, 1.19	1.30^a	1.11, 1.53^a	1.31^a	1.11, 1.54^a
Yes	1.00	Referent	1.00	Referent	1.00	Referent	1.00	Referent
p value for trend	0.98		0.40		0.01^a		0.01^a
Duration of breastfeeding
None	1.00	Referent	1.00	Referent	1.00	Referent	1.00	Referent
>0–6	0.76^a	0.63, 0.92^a	0.75^a	0.62, 0.90^a	0.81^a	0.67, 0.98^a	0.81^a	0.67, 0.98^a
>6–12	0.99	0.84, 1.17	0.92	0.77, 1.08	0.46^a	0.26, 0.84^a	0.47^a	0.26, 0.86^a
>12	1.24^a	1.06, 1.45^a	1.17	0.99, 1.36	0.56	0.31, 1.01	0.57	0.31, 1.02
p value for trend	0.00^a		0.00^a		0.01^a		0.01^a

Model 2 was adjusted for age. Model 3 was adjusted for age, waist to hip ratio, working status, educational level, family history of diabetes, and postpartum body mass index. Model 4 was adjusted for all covariates, including age, body mass index, waist to hip ratio, working status, educational level, smoking, drinking, family history of diabetes, age of menarche, menopause, contraceptive use, age of child-bearing, and postpartum body mass index.

^{^a}

Compared with the referent, the p value for this group was <0.05.

CI, confidence interval; OR, odds ratio.