Centile data for the timing and degree of initial weight loss and the timing of recovery of birth weight by feeding group
| Median | 90th centile | 95th centile | 97.5th centile | |
|---|---|---|---|---|
| Values in parentheses are 95% confidence intervals. | ||||
| Weight loss (%) | ||||
| Breast (n=420) | 6.6 (6.3–6.9) | 10.6 (10.3–11.2) | 11.8 (11.2–12.9) | 12.8 (12.1–13.7) |
| Formula (n=396) | 3.5 (3.0–3.9) | 6.9 (6.6–7.8) | 8.4 (7.8–8.9) | 9.5 (8.6–10.9) |
| Mixed (n=121) | 5.9 (4.8–6.9) | 10.6 (9.5–11.6) | 11.5 (10.6–12.8) | |
| Timing of loss (days) | ||||
| Breast (n=420) | 2.7 (2.5–2.8) | 7.0 (6.2–7.9) | 9.1 (7.7–10.2) | 10.3 (10.0–11.1) |
| Formula (n=396) | 2.7 (2.5–2.9) | 6.2 (5.5–6.8) | 7.1 (6.7–9.2) | 9.3 (7.9–9.9) |
| Mixed (n=121) | 2.5 (2.2–2.8) | 6.5 (4.9–10.0) | 9.3 (6.5–12.0) | |
| Regain birth weight (days) | ||||
| Breast (n=395) | 8.3 (7.7–8.9) | 15.5 (14.5–17.3) | 18.7 (16.7–20.8) | 21.0 (19.8–24.0) |
| Formula (n=389) | 6.5 (6.2–7.1) | 12.4 (11.8–13.9) | 14.5 (13.8–16.7) | 16.7 (15.3–20.2) |
| Mixed (n=116) | 7.9 (7.0–8.5) | 15.7 (13.3–19.0) | 19.0 (15.7–20.3) | |