Group Aa (N = 502,209) | Group Ba (N = 25,408) | Group Ca (N = 6642) | p-value | |
---|---|---|---|---|
Preterm birth | 13,470 (2.68) | 1018 (4.01) | 327 (4.92) | <.0001 |
Neonatal sex–male | 258,518 (51.48) | 13,066 (51.42) | 3430 (51.64) | <.0001 |
Birth weight (kg) | 3.20 ± 0.46 | 3.17 ± 0.50 | 3.11 ± 0.50 | <.0001 |
LBW | 20,203 (4.02) | 1452 (5.71) | 459 (6.91) | <.0001 |
LGA | 17,390 (3.46) | 885 (3.48) | 165 (2.48) | <.0001 |