Table 3.

Hierarchical Linear Regressions for Alcohol Use and for Drug Use

Variable	R 2	R 2 ∆	F∆
Alcohol use
Step 1: Demographic variables	.13	.13	72.39***
Step 2: Child abuse severity	.20	.07	55.03***
Step 3: Lifetime trauma exposure	.24	.04	113.68***
Step 4: Emotion dysregulation	.28	.04	96.56***
Drug use
Step 1: Demographic variables	.12	.12	64.05***
Step 2: Child abuse severity	.19	.08	62.90***
Step 3: Lifetime trauma exposure	.28	.08	240.17***
Step 4: Emotion dysregulation	.30	.02	52.92***

Note. N = 2,014. Demographic variables: Age, gender, education, and household income.

^*** p < .001.