Table 1.
Demographic characteristics of infants included in LCA analysis
| Responsive Parenting (n=129) |
Control (n=130) |
|
|---|---|---|
| Maternal characteristics | ||
| Age (y) | 29.1 (4.5) | 28.8 (4.8) |
| Married (%) | 76.0 | 79.2 |
| Income (%) | ||
| <$10,000 | 3.9 | 2.3 |
| $10,000–24,999 | 6.2 | 6.9 |
| $25,000–49,999 | 3.1 | 16.9 |
| $50,000–74,999 | 34.1 | 19.2 |
| $75,000–99,999 | 24.8 | 16.9 |
| ≥$100,000 | 24.0 | 31.5 |
| Don’t know/refuse to answer | 3.9 | 6.2 |
| Education (%) | ||
| High school or less | 7.8 | 10.8 |
| Some college | 26.4 | 24.6 |
| College graduate | 36.4 | 39.2 |
| Post graduate | 29.5 | 25.4 |
| Race (%) | ||
| Black | 5.4 | 4.6 |
| White | 89.2 | 92.3 |
| Native Hawaiian or Pacific Islander | 0.8 | 0 |
| Asian | 3.1 | 3.1 |
| Other | 1.6 | 0 |
| Hispanic (%) | 7.0 | 6.2 |
| Pre-pregnancy BMI | 25.6 (5.0) | 25.3 (5.7) |
| Gestational weight gain (kg) | 15.4 (6.3) | 15.1 (6.0) |
| Returned to work by 3 mo (%) | 53.1 | 59.9 |
| Infant characteristics | ||
| Infant sex (% male) | 53.5 | 49.2 |
| Birth wt for gestational age z-score | −0.04 (0.88) | 0.08 (0.87) |
| In childcare at 20w (%) | 60.5 | 66.2 |
Values are mean (SD) or %.