Table 5.
Generalized mixed-effects hurdle models: Concurrent and prospective associations between stress and substance use
AUDIT | CUDIT | ||||
---|---|---|---|---|---|
Predictor | Level | Any Alcohol Use (OR)a | Alcohol Use Problems (RR)b | Any Marijuana Use (OR)a | Marijuana Use Problems (RR)b |
Internalized stigma | Within Concurrent | 1.16 [1.03, 1.31] | 1.03 [.88, 1.20] | 1.31 [.96, 1.79] | .91 [.82, 1.01] |
Within Prospective | 1.11 [.97, 1.26] | .98 [.93, 1.04] | .95 [.53, 1.71] | .96 [.82, 1.13] | |
Between | 1.51 [1.19, 1.91] | 1.32 [1.12, 1.56] | 1.07 [.96, 1.21] | 1.08 [.91, 1.28] | |
Microaggressions | Within Concurrent | 1.58 [1.11, 2.24] | .98 [.85, 1.13] | 1.08 [1.02, 1.15] | .96 [.91, 1.01] |
Within Prospective | .90 [.70, 1.17] | .82 [.45, 1.48] | 1.67 [.59, 4.71] | .94 [.83, 1.07] | |
Between | 1.63 [1.24, 2.16] | 1.28 [1.07, 1.55] | 2.22 [1.73, 2.86] | 1.27 [1.09, 1.47] | |
Victimization | Within Concurrent | .92 [.72, 1.18] | 1.31 [1.06, 1.63] | 1.11 [.99, 1.24] | 1.22 [1.18, 1.26] |
Within Prospective | 1.12 [.40, 3.19] | .76 [.54, 1.07] | .76 [.60, 1.04] | 1.38 [.54, 3.49] | |
Between | 1.53 [.94, 2.46] | 1.73 [1.29, 2.32] | 2.70 [1.67, 4.36] | 1.40 [1.13, 1.74] | |
General Stress | Within Concurrent | 1.04 [1.03, 1.05] | 1.00 [.98, 1.02] | 1.03 [1.00, 1.06] | 1.01 [1.00, 1.02] |
Within Prospective | 1.00 [.92, 1.08] | 1.00 [.97, 1.02] | .98 [.91, 1.04] | .99 [.97, 1.01] | |
Between | 1.03 [.98, 1.08] | 1.06 [1.02, 1.09] | 1.09 [1.04, 1.13] | 1.04 [1.01, 1.07] |
All models were estimated controlling for linear change in likelihood of substance use and substance use problems over time, age at baseline, sexual identity, gender identity, and race/ethnicity.
coefficient for hurdle portion of model (likelihood of using substance);
coefficient for count portion of model (count of substance use problems). Significant associations are in bold.