Table 3.
Estimates for multilevel models predicting alcohol and marijuana use consequences on SAM use days.
| Alcohol positive consequences |
Alcohol negative consequences |
Marijuana positive consequences |
Marijuana negative consequences |
|||||
|---|---|---|---|---|---|---|---|---|
| Predictor | RR | 95% CI | RR | 95% CI | RR | 95% CI | RR | 95% CI |
| Between person predictors | ||||||||
| Intercept | 3.67*** | (3.37,4.00) | 0.94 | (0.71,,1.25) | 2.10*** | (1.93,2.29) | 1.28* | (1.00,1.63) |
| Male | 0.96 | (0.90,1.04) | 0.60*** | (0.48,0.76) | 1.01 | (0.95,1.09) | 0.76** | (0.63,0.93) |
| Age a | 1.01 | (0.99,1.03) | 0.95 | (0.90,1.01) | 0.99 | (0.97,1.02) | 1.02 | (0.96,1.09) |
| Four-year college | 0.99 | (0.91,1.08) | 1.07 | (0.81,1.41) | 0.96 | (0.87,1.06) | 1.07 | (0.81,1.43) |
| Race/ethnicity (ref.=White) | ||||||||
| Hispanic | 1.06 | (0.96,1.17) | 0.90 | (0.68,1.20) | 1.03 | (0.92,1.15) | 0.95 | (0.72,1.25) |
| Asian | 1.08 | (0.98,1.20) | 0.84 | (0.59,1.19) | 1.07 | (0.96,1.19) | 1.28* | (1.01,1.62) |
| Other | 0.98 | (0.89,1.08) | 0.80 | (0.57,1.13) | 0.93 | (0.85,1.01) | 0.78 | (0.60,1.01) |
| Avg. hours higha | 1.00 | (0.98,1.01) | 1.05 | (0.99,1.11) | 1.01 | (1.00,1.03) | 1.07*** | (1.04,1.11) |
| Avg. number of drinksa | 1.06*** | (1.04,1.07) | 1.16*** | (1.12,1.21) | 0.99 | (0.97,1.01) | 1.00 | (0.95,1.05) |
| Avg. Cross-fadinga | 1.07*** | (1.03,1.11) | 1.25*** | (1.10,1.43) | 1.05** | (1.02,1.09) | 1.05 | (0.95,1.16) |
| Avg. general enhancementa | 1.12*** | (1.06,1.18) | 0.95 | (0.81,1.13) | 1.14*** | (1.08,1.20) | 1.03 | (0.90,1.19) |
| Avg. general sociala | 1.10*** | (1.05,1.15) | 1.19* | (1.02,1.39) | 0.97 | (0.93,1.02) | 1.16* | (1.02,1.33) |
| Avg. general copinga | 1.08* | (1.02,1.15) | 1.37** | (1.13,1.66) | 1.23*** | (1.17,1.31) | 1.41*** | (1.20,1.66) |
| Avg. general conformitya | 1.02 | (0.97,1.07) | 1.22** | (1.07,1.41) | 0.97 | (0.92,1.02) | 1.18* | (1.03,1.36) |
| Within person predictors | ||||||||
| Burst 2 | 0.95 | (0.90,1.01) | 0.96 | (0.80,1.15) | 0.93* | (0.88,0.99) | 0.99 | (0.86,1.14) |
| Weekend | 1.03 | (0.98,1.09) | 1.16* | (1.01,1.35) | 1.02 | (0.97,1.08) | 1.11 | (0.99,1.24) |
| Day number within burst (0-13) | 1.00 | (0.99,1.00) | 0.99 | (0.97,1.01) | 0.99*** | (0.98,1.00) | 1.00 | (0.98,1.01) |
| Number of drinksb | 1.05*** | (1.04,1.07) | 1.22*** | (1.18,1.27) | 1.01 | (1.00,1.02) | 0.94** | (0.91,0.98) |
| Hours highb | 0.99 | (0.98,1.00) | 0.98 | (0.95,1.02) | 1.01 | (0.99,1.02) | 1.09*** | (1.06,1.12) |
| Cross-fadingb | 1.08*** | (1.04,1.13) | 1.05 | (0.93,1.18) | 1.00 | (0.95,1.05) | 1.06 | (0.96,1.18) |
| General enhancementb | 110*** | (1.05,1.15) | 1.00 | (0.87,1.15) | 1.13*** | (1.07,1.18) | 0.95 | (0.87,1.04) |
| General socialb | 1.04* | (1.01,1.07) | 1.10* | (1.00,1.22) | 0.97 | (0.94,1.00) | 0.99 | (0.91,1.07) |
| General copingb | 1.00 | (0.95,1.05) | 1.05 | (0.91,1.21) | 1.11*** | (1.05,1.17) | 1.38*** | (1.23,1.55) |
| General conformityb | 1.04 | (0.99,1.10) | 1.16* | (1.01,1.34) | 0.98 | (0.93,1.03) | 1.26*** | (1.12,1.43) |
a
Grand mean centered
b
Person mean centered
*
p<.05
**
p<.01
***
p<.001
Note. RR = count ratio, b = unstandardized regression coefficient, se = standard error, Avg.= average, SAM = simultaneous alcohol and marijuana, SU = substance use, ref.= reference group