n | OR (95% CI) | ||||
---|---|---|---|---|---|
MDI | PDI | ||||
Breast feeding alone | 273 | 3.2 (1.7–5.9) | 1.5 (0.8–2.6) | ||
Breast feeding + mother's age | 268 | 1.7 (1.3–2.4) | 1.2 (0.9–1.6) | ||
Breast feeding + education | 271 | 1.8 (1.3–2.5) | 1.2 (0.9–1.6) | ||
Breast feeding + smoking | 272 | 1.9 (1.3–2.6) | 1.1 (0.8–1.5) | ||
Breast feeding + Raven score | 193 | 1.6 (1.1–2.3) | 1.3 (0.9–1.8) |
MDI, Mental Developmental Index; PDI, Psychomotor Developmental Index.