Table 3.
Unstandardized path coefficients for the conditional process models (moderated mediation).
| 5-HTTLPR to SRE-5 (a) | SRE-5 to Alcohol Outcomes (b1) | Parental Monitoring to Alcohol Outcomes (b2) | Interaction (SRE-5 × Parental Monitoring) to Alcohol Outcomes (b3) | Direct Effect (5-HTTLPR to Alcohol Outcomes) (c′) | Model Summary | |
|---|---|---|---|---|---|---|
| Drinks per year | 0.31* (0.13) | 1.11* (0.54) | −0.60 (0.69) | −1.46* (0.70) | 0.92 (1.02) |
R2 = 0.32 F (8,209) = 12.52 p < 0.001 |
| Binge drinking days per year | 0.31* (0.13) | 0.26 (0.18) | −0.23 (0.22) | −0.63** (0.23) | 0.04 (0.33) |
R2 = 0.21 F (8,209) = 6.94 p < 0.001 |
| Alcohol-related problems per year | 0.31* (0.13) | −0.03 (0.25) | −0.60^(0.31) | −0.85** (0.32) | 0.06 (0.46) |
R2 = 0.16 F (8,209) = 5.09 p < 0.001 |
| Lifetime AUDa | 0.31* (0.13) | −0.30 (0.18) | −0.22 (0.22) | −0.22 (0.23) | 0.13 (0.32) | Nagelkerke R2 = 0.13 Model log-likelihood = 21.46 p = 0.006 |
Note. AUD, alcohol use disorder; 5-HTTLPR, serotonin transporter-linked polymorphic region of the serotonin transporter gene (SLC6A4); SRE-5, Self-Rating of the Effects of Alcohol (first five drinking occasions; standardized person-mean imputation method [Lee et al., 2015]). Numbers given are unstandardized coefficients with standard errors in parentheses. Drinks per year, binge drinking days per year, and alcohol-related problems per year were square root transformed prior to testing the models. Lifetime AUD refers to the presence/absence of Diagnostic and Statistical Manual of Mental Disorders (DSM-IV; APA, 1994) abuse or dependence in the lifetime. See Fig. 2 for a statistical diagram of the path coefficients.
p < .10,
p < .05,
p < .01.
Model summary results refer to logistic regression.