Table 3.
Explanatory variable | Model 1 | Model 2 | Model 3 | Model 4 |
---|---|---|---|---|
Low total word score, 24 months | 17.85*** | 16.51*** | 17.16*** | 16.60*** |
Sociodemographics | ||||
Black | 0.55* | 0.47* | 0.43* | 0.42* |
Hispanic | 0.73 | 0.81 | 1.04 | 1.05 |
Other race | 0.62 | 0.61 | 0.63 | 0.61 |
Age | 1.01 | 0.98 | 0.98 | 0.98 |
Male | 1.23 | 1.32 | 1.38 | 1.36 |
Lowest SES quintile, 24 months | 0.47 | 0.38* | 0.42* | 0.42* |
Second lowest SES quintile, 24 months | 0.63 | 0.50* | 0.52 | 0.53 |
Middle SES quintile, 24 months | 0.54* | 0.47* | 0.45* | 0.45* |
Second highest SES quintile, 24 months | 0.57 | 0.54* | 0.52* | 0.52* |
Birth conditions | ||||
Nonsingleton | 0.87 | 0.95 | 0.96 | |
Mother's age >35 at child's birth | 0.95 | 1.02 | 1.03 | |
Mother's age ≤18 at child's birth | 0.87 | 0.72 | 0.72 | |
Mother not married, 24 months | 1.03 | 0.95 | 0.93 | |
Very low birth weight | 7.48*** | 7.76*** | 7.68*** | |
Moderately low birth weight | 2.11** | 2.22** | 2.21** | |
Labor complications | 1.22 | 1.20 | 1.20 | |
Obstetric procedures | 0.98 | 0.98 | 0.97 | |
Maternal medical risk factor at birth | 1.03 | 0.99 | 0.99 | |
Maternal behavioral risk factor at birth | 1.84* | 1.61 | 1.59 | |
Household characteristics | ||||
Non-English primary language, 24 months | 0.70 | 0.70 | ||
Parenting score, 24 months | 0.92 | 0.94 | ||
Family member with mental illness, 24 months | 2.15** | 2.14** | ||
Family member with learning disability, 24 months | 2.18*** | 2.16*** | ||
Maternal health problems, 9 months | 1.46 | 1.46 | ||
Household has person with special needs, 9 months | 0.73 | 0.71 | ||
Mother depressed, 9 months | 1.39 | 1.40 | ||
Child is in day care center >10 hr/week, 24 months | 1.63 | 1.65 | ||
Mother isolated, 9 months | 0.56* | 0.56* | ||
Child behaviors | ||||
Approaches to learning problems, 24 months | 1.35 | |||
Internalizing problems, 24 months | 0.79 | |||
Externalizing problems, 24 months | 1.09 |
Note. SES = socioeconomic status. Weighted regressions. Age and parenting scores are standardized with M = 0, SD = 1.
Sample size rounded to nearest 50 per ECLS-B confidentiality requirements.
p < .05.
p < .01.
p < .001.