Table 3.
Association between pre-pregnancy body mass index status and breastfeeding duration by ordinal logistic regression model.
| Crude OR | 95% Wald Confidence Limits | Adjusted OR * | 95% Wald Confidence Limits | |
|---|---|---|---|---|
| Underweight | 1.22 | 1.15, 1.31 | 1.21 | 1.13, 1.29 |
| Normal | Reference | - | Reference | - |
| Overweight | 1.21 | 1.09, 1.33 | 0.98 | 0.89, 1.08 |
| Obese | 1.83 | 1.5, 2.23 | 1.25 | 1.02, 1.53 |
* Adjusted for maternal age, parity, maternal education, maternal immigration status, urbanicity of living area, maternal gestational diabetes, cesarean delivery, employment status at 6 months postpartum, preterm delivery, marital status, dyad separation, gestational weight gain and smoking during pregnancy.