Table 1.
Demographic characteristics of 139 pregnant women enrolled in the PROTECT study (2010-2012).
| Variable | Mean ± SD or n (%) |
|---|---|
| Maternal Age at enrollment (years) | 27.5 ± 5.2 |
| Gravity (# pregnancies) | 1.9 ± 1.0 |
| Parity (# live births) | 0.6 ± 0.7 |
| Years of Maternal Education | |
| < High school | 14 (10.7) |
| High school/equivalent | 10 (7.2) |
| College | 115 (82.7) |
| Household Income (US$) | |
| Missing | 21 (14.8) |
| < $20,000 | 57 (40.1) |
| ≥$20,000 to < $40,000 | 34 (24.0) |
| ≥ $40,000 | 30 (21.1) |
| Marital Status | |
| Single | 39 (28.6) |
| Married or living together | 100 (71.4) |
| Prepregnancy BMI (kg m−2) | |
| ≤ 25 | 80 (56.6) |
| > 25 to ≤ 30 | 42 (30.9) |
| > 30 | 17 (12.5) |
| Smoked During Pregnancy | |
| Missing | 7 (5.0) |
| Yes | 1 (0.8) |
| No | 131 (94.2) |
| Employment | |
| Unemployed | 55 (39.6) |
| Employed | 84 (60.4) |