Table 1.

Demographics of study population

Maternal
Age (years)	27.6 ± 5.3
Height (cm)	163 ± 7
Pre-pregnancy weight (kg)	73.7 ± 20.3
Pre-pregnancy BMI (kg/m2)	27.5 ± 7.0
Parity
0	37
1	23
>1	18
Race/ethnicity
Caucasian	58
African American	11
Hispanic	7
Asian	2

Data are means ± SD or n.