Table 3.

Multiple Regression Analysis: Effects of Nine Risk Factors on Quality of Home Environment

Effect	β
Intercept	0.64***
Site-ethnicity (reference: NC Caucasian)
PA Caucasian	0.05
NC African American	−0.55***
Risk Factor
Mother has no partner or spouse	−0.07
Mother is unmarried	−0.19**
Mother had first child at age 19 or younger	−0.05
Mother has no high school diploma or GED	−0.20**
Mother is poor reader	−0.31+
Household income-to-needs below 1.5	−0.25***
4 or more children under 18 in household	−0.52**
Child exposed to prenatal smoking	−0.11+
Mother has depression/mood disorder	0.06
Site-ethnicity × Risk Factor
PA Caucasian × Poor reader	0.02
PA Caucasian × 4 or more children	0.55*
NC African American × Poor reader	−0.29
NC African American × 4 or more children	0.33

⁺p<.10,

^*p<.05,

^**p<.01,

^***p<.001

Note. Only interaction terms with significant overall effect (across all three site-ethnicity groups) were included in final model.