|
Group A*
(N = 502,209)
|
Group B*
(N = 25,408)
|
Group C*
(N = 6,642)
|
p-value
|
Preterm birth |
13,470 (2.68) |
1,018 (4.01) |
327 (4.92) |
<.0001 |
Neonatal sex–male |
258,518 (51.48) |
13,066 (51.42) |
3,430
(51.64) |
<.0001 |
Birth weight (kg) |
3.20 ± 0.46 |
3.17 ± 0.50 |
3.11 ± 0.50 |
<.0001 |
LBW |
20,203 (4.02) |
1,452 (5.71) |
459 (6.91) |
<.0001 |
LGA |
17,390 (3.46) |
885 (3.48) |
165 (2.48) |
<.0001 |