| Unadjusted OR (95% CI) | p-value | Adjusted OR (95% CI) | p-value |
---|---|---|---|---|
Age | 1.19 (1.11–1.28) | < 0.001 | 1.16 (1.05–1.29) | 0.003 |
BMI | 1.21 (1.01–1.44) | 0.039 | 1.26 (1.04–1.54) | 0.021 |
The number of pregnancy | 2.50 (1.67–3.75) | < 0.001 | 1.80 (1.08–2.98) | 0.024 |
parity | 2.61 (1.58–4.32) | < 0.001 | 0.78 (0.29–2.10) | 0.625 |
Overall breastfeeding duration | ||||
 Never | 1 (reference) |  | 1 (reference) |  |
 1–12 months | 2.23 (0.30–16.71) | 0.435 | 2.51 (0.26–23.90) | 0.424 |
 12–24 months | 2.22 (0.29–16.73) | 0.440 | 1.26 (0.13–12.30) | 0.840 |
  > 24 months | 39.00 (2.40–634.65) | 0.010 | 5.22 (0.18–147.76) | 0.333 |