Maternal age (years)

25.5 ± 6.4

Gestational age at delivery (weeks)

39.3 ± 2.5

Registration of prenatal care (months)

2.3 ± 1.5

White

34.9%

Black

5.6%

Mexican/Hispanic

44.2%

Length of stay at birth admission (days)

2.7 ± 2.3

Pre-existing diabetes mellitus

3947 (0.4%)

Gestational diabetes mellitus

35,329 (3.7%)

Hypertensive disorders of pregnancy

44,342 (4.7%)

Preterm delivery (<37.0 weeks)

94,822 (10.0%)