Table 2. Median duration of total and exclusive BF according maternal pre-pregnancy BMI and GWG (2004 Cohort Pelotas, Brazil).
| Total BF (N=3738) | Exclusive BF (N=3901) | |
|---|---|---|
| Median (IQR) | Median (IQR) | |
| Total | 7.0 (0.5; 46.0) | 1.5 (0.06; 6.0) |
| Pre-pregnancy BMI | ||
| Underweight | 5.0 (0.5; 36.0) | 1.0 (0.03; 5.0) |
| Normal weight | 7.0 (0.5; 42.0) | 1.6 (0.06; 6.0) |
| Overweight | 7.0 (0.5; 48.0) | 1.5 (0.03; 6.0) |
| Obese | 6.0 (0.3; 48.0) | 1.2 (0.06; 6.0) |
| GWG (IOM) | ||
| Insufficient | 6.5 (0.5; 46.5) | 1.5 (0.03; 6.0) |
| Sufficient | 7.0 (0.7; 44.0) | 1.5 (0.06; 6.0) |
| Excessive | 7.0 (0.5; 48.0) | 1.5 (0.06; 6.0) |
Abbreviations: BF, breastfeeding; BMI, body mass index; GWG, gestational weight gain; IOM, Institute of Medicine; IQR, interquartile range. Excluded the weaned.