Delta weight SDS during infancy, stratified by duration of EBF
| Period of weight gain (week) | Delta weight SDS by duration of EBF | 2–5 weeks vs 12+ weeks | 6–11 weeks vs 12+ weeks | ||
| 2–5 weeks (n=54) | 6–11 weeks (n=14) | 12+ weeks (n=80) | |||
| 0–2 | −0.04 (0.08) | 0.10 (0.15) | 0.23 (0.06) | P=0.008 | P=0.3 |
| 2–6 | 0.07 (0.13) | −0.45 (0.19) | −0.08 (0.11) | P=0.09 | P=0.02 |
| 6–12 | NA | −0.17 (0.11) | −0.2 (0.04) | NA | P=0.97 |
| 12–52 | NA | 0.61 (0.11) | 0.08 (0.08) | NA | P=0.02 |
Values are mean (SE).
Tests of differences between groups were adjusted for infant sex, gestational age at birth, weight SDS at birth and mother’s age, prepregnancy BMI and education.
BMI, body mass index; EBF, exclusive breast feeding (duration in completed whole weeks); NA, not available; SDS, SD score.