Table 1.
Family and Child Characteristics (N=10200, unless otherwise noted)
| Variable | Mean (SD) or Percentage |
|---|---|
| Cognitive Development | |
| Bayley Mental Score 9 months | 76.69 (9.79) |
| 9-month Low Income/Non-low Income Difference in Bayley Scores | .63** F(1, 10200) = 10.51 |
| Bayley Mental Score 24 months (N = 8900) | 127.09 (10.65) |
| 24-month Low Income/Non-low Income Difference in Bayley Scores | 5.02*** F(1, 8900) = 525.30 |
| Child and Family Characteristics | |
| Family Income (>1.85 poverty threshold) | 51.51% |
| English Spoken at Home | 81.17% |
| Parent-reported Home Score | 12.30 (2.45) |
| ECLS-B Observed HOME Score | 10.58 (1.28) |
| Single Mom | 19.57% |
| Maternal Sensitivity (NCATS) | 34.64 (4.17) |
| Maternal Education (N = 8950) | |
| Less than High School Diploma | 17.78% |
| High School Diplomaa | 30.94% |
| Some College | 26.57% |
| Bachelor’s Degree or Higher | 24.71% |
| Child Characteristics | |
| Black | 13.77% |
| Hispanic | 25.58% |
| Whitea | 53.38% |
| Other | 7.27% |
| Male | 51.11% |
| Child’s Age in Months at 9 Month Data Collection | 10.48 (1.95) |
| Hours of Care at 9 Months | 15.61 (20.03) |
| Maternal Care at 9 Months | 49.92% |
| First-born Status | 40.71% |
| Number of Siblings | .99 (1.11) |
| Low Birth Weight | 6.21% |
| Very Low Birth Weight | 1.29% |
Note.
a
Omitted category in multinomial logistic regression.
*
p < 0.05,
**
p < 0.01,
***
p < 0.001.
All variables were measured at 9 months unless otherwise noted. Means were weighted using ECLS-B weight W1C0 for 9 month variables and W2C0 for 24-month Bayley score and maternal education. Ns are rounded to the nearest 50.