Results of multiple regression analysis with total SDS and current severity of alcohol use index score as dependent variables

Predictor variablestP valueR2FdfP value
Model for SDS21.4%14.272/103< 0.001***
Lifetime alcohol dependence–2.880.005**---
Lifetime mood disorders+4.51< 0.001***---
Model for severity of current alcohol use19.5%8.233/102< 0.001***
Lifetime alcohol dependence+2.200.030---
Day per month of MA use–3.170.002**---
Lifetime cannabis use+2.680.009**---

R2: the coefficient of determination; t: test statistic from a two-sided t-test; -: not applicable. ** P < 0.01; *** P < 0.001