Table 4.
Multiple Regression Models to Estimate the Egeland Summary Score Difference Between Prenatally Cocaine-Exposed and Non–Cocaine-Exposed Children (n = 343)
| Estimated | |||
|---|---|---|---|
| Differencea | 95% CI | p Value | |
| Model 1 | |||
| Prenatal cocaine exposure (no other covariates) | −0.21 | −0.36, −0.07 | .005 |
| Model 2 | |||
| Prenatal cocaine exposure, child sex, and test age | −0.20 | −0.35, −0.06 | .007 |
| Model 3 | |||
| Subsumes Model 2, plus terms for level of prenatal exposure to alcohol, marijuana, and tobacco based on maternal self-report | −0.18 | −0.34, −0.02 | .028 |
| Model 4 | |||
| Subsumes Model 2, plus terms for maternal age, years education, marital status, and employment | −0.18 | −0.34, −0.01 | .042 |
| Model 5 | |||
| Subsumes Model 2, plus terms for primigravida status and prenatal care visits | −0.21 | −0.37, −0.06 | .008 |
CI, confidence interval.
a
Estimated difference associated with prenatal cocaine exposure, controlling for birth covariates. Difference estimates expressed in SD units for the Egeland Summary Score.