Table 2 Effect of birth order on gestational age and birth weight
First birth (N = 370) | Second birth (N = 206) | ≥ Third birth (N = 424) | p-value | |
|---|---|---|---|---|
Gestational age (weeks) | 39.1 (1.8) | 39.1 (1.7) | 39.0 (1.8) | p = 0.573 |
Birth weight (g) | 3021.6 (527.2) | 3156.9 (497.1) | 3215.7 (553.0) | p = 0.0001 |
LBW-rate (%) | 12.2% | 5.3% | 6.4% | p = 0.003 |