Table 2.
Regression analysis: Environmental factors and teacher-rated hyperactivity/impulsivity in ADHD combined type probands
| Environmental Risk Factors | Unstandardized Coefficients | Standardized Coefficients | |||
|---|---|---|---|---|---|
| B | Std. Error | Beta | tolerance | p | |
| (Constant) | 117.189 | 42.150 | |||
| HOME score | −.286 | .128 | −.313 | −2.233 | .030 |
| Birth weight | 1.041 | 3.375 | .042 | .309 | .759 |
| Gestational age | −1.083 | .956 | −.148 | −1.133 | .262 |
| Cigs exposure in utero | 6.396 | 2.489 | .362 | 2.570 | .013 |
| Alcohol exposure in utero | 2.642 | 2.021 | .150 | 1.307 | .196 |
| Pregnancy risk factors | −3.706 | 2.401 | −.224 | −1.543 | .128 |
| Perinatal risk factors | 3.239 | 2.361 | .166 | 1.372 | .176 |
| Father’s socioeconomic status | −2.366 | 1.747 | −.186 | −1.355 | .181 |
| Mother’s socioeconomic status | 1.564 | 1.349 | .145 | 1.159 | .251 |
| gender | 11.963 | 3.816 | .338 | 3.135 | .003 |