Table 1.
Hierarchical linear regression predicting unprotected sex from measure of age, income, depression, frequency of methamphetamine use, negative condom attitudes, and frequency of methamphetamine use times negative condom attitudes (N = 281)
| Model | Variable | B | SE | Beta | t | p | Adjusted R 2 |
|---|---|---|---|---|---|---|---|
| Step 1 | Age | .023 | .138 | .010 | <1 | ns | .025 |
| Income | 2.151 | .713 | .178 | 3.01 | .003 | ||
| Step 2 | Depression score | .055 | .098 | .033 | <1 | ns | .150 |
| Frequency of meth use | .302 | .107 | .160 | 2.81 | .005 | ||
| Condom attitudes | 1.227 | .215 | .321 | 5.70 | .000 | ||
| Step 3 | Meth use × Condom attitudes | .049 | .022 | .120 | 2.16 | .031 | .161 |