Table 1.
Sample characteristics (N = 191).
| Variable | |
|---|---|
| Agea | 27.67 ± 5.30 |
| Pre-pregnancy body mass index | 33.12 ± 6.63 |
| % Began pregnancy overweight (n) | 45% (85) |
| % Black (n) | 55% (104) |
| % Education ≤ High school degree (n) | 35% (67) |
| % Annual income ≤ $30,000 (n) | 68% (129) |
| % Unemployed (n) | 36% (69) |
| % Medicare/Medicaid (n) | 63% (119) |
| % Nulliparous (n) | 35% (66) |
| % Primagravida (n) | 27% (51) |
| % Pregnancy intentional (n) | 45% (86) |
| Weeks pregnant at delivery | 38.81 ± 2.69 |
| Gestational weight gain in kilogramsb | 13.85 ± 8.73 |
| % Adequate gestational weight gainb (n) | 13% (22) |
Fewer than 2% (n = 3) of the sample was <18 years of age. Participants <18 years of age did not significantly differ from those ≥18 years of age on any of the study variables (ps > .02) after applying a Bonferroni correction for multiple comparisons (α = 0.004).
Values based on information from 164 women after excluding 17 women who were <37 weeks gestation at delivery and 10 women who had incomplete information in medical records. Gestational weight gain did not correlate with gestational age (r = 0.05, p = .53). There also was no difference in gestational weight gain between women who delivered between 37 and 39 weeks gestation and those who delivered between 40 and 43 weeks gestation (t(162)= −0.76, p = .45). Accordingly, gestational age was not accounted for in analyses including gestational weight gain.