Table 1

Demographic data
Total sample (n = 362)
Age (years) 30.1 ± 5.9
Pre-pregnancy BMI (kg/m2) 27.0 ± 7.3
Obesity (BMI ≥ 30;%) 27.1%
Racial Background:
Caucasian (%) 72.9%
African American (%) 12.2%
Asian (%) 8.9%
Multi-racial/Other (%) 6.1%
Educational Level:
High school or less (%) 24.5%
Marital Status:
Married (%) 67.7%
Partner (%) 3.9%
Single (%) 22.9%
Separated (%) 0.8%
Divorced (%) 0.6%
Unknown (%) 4.1%
Nulliparous (%) 32.0%
Pre-eclampsia (%) 7.8%
Diabetes Mellitus (%) 14.6%
Smoker (%) 14.5%

Data shown as mean ± standard deviation, or proportion as appropriate.

BMI = Body Mass Index.

O’Brien et al.

O’Brien et al. BMC Pregnancy and Childbirth 2013 13:113   doi:10.1186/1471-2393-13-113

Open Data