Table 6 Mean weight gain from 1 week after birth to 34 weeks of 4 NICHD cohorts and the 3 PreM Growth Study cohorts
NICHD cohorts | 688 g* | 950 g | 1150 g |
|---|---|---|---|
N | 197 | 191 | 168 |
Gestational age (mean) | 25.4 | 27.6 | 29.0 |
Small for gestational age (%) | 45.4 | 18.5 | 22.8 |
Weight gain (g/kg/d) | 14.0 | 14.6 | 16.0 |
Regain birthweight (days) | 16.6 +/− 12.3*** | 14.4 +/− 9.7*** | 13.2 +/− 8.5*** |
PreM Growth study cohorts | 664 g | 992 g | 1084 g |
N | 193 | 429 | 160 |
Gestational age (mean) | 24.4 | 27.0 | 29.6 |
Small for gestational age (%) | 1.3 | 8.0 | 26.2 |
Weight gain (g/kg/d) ** | 13.1 | 15.2 | 14.8 |
Regain birthweight (days) | 12.2 +/− 5.9*** | 12.4 +/− 5.1*** | 10.1 +/− 4.1*** |