Table 4.
Marijuana Consequences Predicted by Unplanned SAM Use
| Positive marijuana consequences | Negative marijuana consequences | |||||||
|---|---|---|---|---|---|---|---|---|
| Predictor | Without hours high as a covariate (Model 1) |
With hours high as a covariate (Model 2) |
Without hours high as a covariate (Model 1) |
With hours high as a covariate (Model 2) |
||||
| RR | 95% CI | RR | 95% CI | RR | 95% CI | RR | 95% CI | |
| Level 2, Between-Person | ||||||||
| Intercept | 2.17** | (1.22, 3.84) | 1.37 | (0.76, 2.50) | 1.59 | (0.44, 5.67) | 0.60 | (0.16, 2.19) |
| Male | 0.95 | (0.87, 1.03) | 0.94 | (0.87, 1.03) | 0.72** | (0.58, 0.89) | 0.71** | (0.58, 0.87) |
| Asian Non-Hispanic1 | 1.10 | (0.96, 1.26) | 1.09 | (0.96, 1.25) | 1.40* | (1.01, 1.93) | 1.39* | (1.02, 1.89) |
| Other Non-Hispanic1 | 0.94 | (0.84, 1.06) | 0.93 | (0.83, 1.04) | 0.85 | (0.64, 1.13) | 0.84 | (0.64, 1.10) |
| Hispanic1 | 1.03 | (0.91, 1.15) | 0.99 | (0.88, 1.11) | 0.83 | (0.61, 1.13) | 0.76 | (0.56, 1.02) |
| Age at baseline | 1.00 | (0.97, 1.02) | 1.00 | (0.98, 1.02) | 0.99 | (0.94, 1.04) | 1.00 | (0.95, 1.05) |
| Attends four-year college (versus not) | 1.03 | (0.92, 1.16) | 1.01 | (0.90, 1.13) | 1.12 | (0.85, 1.47) | 1.07 | (0.82, 1.39) |
| Proportion of SAM use days that were unplanned | 1.04 | (0.89, 1.21) | 1.08 | (0.93, 1.26) | 1.03 | (0.73, 1.45) | 1.15 | (0.82, 1.61) |
| Average hours high | . | . | 1.20*** | (1.11, 1.29) | . | . | 1.48*** | (1.24, 1.76) |
| Level 1, Within-Person | ||||||||
| Marijuana use at PM report (versus not) | 1.05 | (0.97, 1.13) | 1.02 | (0.94, 1.10) | 1.05 | (0.94, 1.17) | 0.98 | (0.87, 1.09) |
| Burst number | 0.97* | (0.95, 1.00) | 0.97* | (0.95, 1.00) | 0.98 | (0.95, 1.02) | 1.00 | (0.96, 1.03) |
| Day number within burst | 0.99 | (0.98, 1.00) | 0.99 | (0.98, 1.00) | 0.99 | (0.98, 1.00) | 0.99 | (0.98, 1.01) |
| Weekend (versus not) | 1.00 | (0.93, 1.07) | 1.00 | (0.93, 1.07) | 0.93 | (0.84, 1.02) | 0.90* | (0.82, 0.99) |
| Hours high on this day | . | . | 1.06* | (1.01, 1.12) | . | . | 1.53*** | (1.43, 1.64) |
| Unplanned SAM use (versus planned SAM use) | 0.97 | (0.89, 1.06) | 0.97 | (0.89, 1.06) | 0.97 | (0.87, 1.08) | 1.00 | (0.90, 1.11) |
Note. Models were based on 308 persons and 1,767 SAM use days. Model 1 does not control for marijuana use, while Model 2 does control for marijuana use (Level 1 = hours high on that day; Level 2 = average hours high). RR = Rate Ratio; CI = Confidence Interval. PM report refers to afternoon survey.
1
Reference category was coded as non-Hispanic/Latinx White.
*
p < .05.
**
p < .01.
***
p < .001.