Age, years, n (%) | |
 18–24 | 251 (17.7) |
 25–29 | 377 (26.6) |
 30–34 | 515 (36.4) |
 35–39 | 234 (16.5) |
 40–44 | 38 (2.7) |
Race/Ethnicity, n (%) | |
 Non-Hispanic White | 341 (24.1) |
 Hispanic | 582 (41.1) |
 Asian | 298 (21.1) |
 African American | 143 (10.1) |
 Other | 51 (3.6) |
Education, n (%) | |
 High school or less | 210 (14.8) |
 Some College | 568 (40.1) |
 College graduate | 386 (27.3) |
 Post graduate | 247 (17.5) |
 Unknown | 4 (0.3) |
Household income, $, n (%) | |
  < 50,000 | 487 (34.4) |
 50,000-99,999 | 467 (33.0) |
 100,000-149,999 | 241 (17.0) |
  ≥ 150,000 | 191 (13.5) |
 Unknown | 29 (2.0) |
Parity, n (%) | |
 0 | 587 (41.5) |
 1 | 522 (36.9) |
  ≥ 2 | 287 (20.3) |
 Unknown | 19 (1.3) |
Pre-pregnancy BMI, kg/m2, n (%) | |
  < 18.5 | 37 (2.6) |
 18.5–24.9 | 515 (36.4) |
 25.0–29.9 | 436 (30.8) |
  ≥ 30.0 | 426 (30.1) |
 Unknown | 1 (0.1) |
Gestational age at study visit, weeks, mean (SD) | |
 Clinic visit 1 | 13.6 (2.3) |
 Clinic visit 2 | 19.8 (2.5) |
Gestational diabetes, n (%) | 149 (10.5) |
Gestational age at delivery, weeks, mean (SD) | 38.8 (2.0) |
Infant birthweight, g, mean (SD) | 3362.9 (538.3) |