Table 1.
Participant Demographics and Substance Use Behavior (n=38)
| N/% OR MEAN (SD) | |
|---|---|
|
| |
| Age | 18.7 (0.66) |
| Biological sex a | |
| Male | 19 (50%) |
| Female | 19 (50%) |
| Year in school | |
| Freshman | 31 (82%) |
| Sophomore | 7 (18%) |
| Race (check all that apply) | |
| White | 27 (71%) |
| African American | 2 (5%) |
| Asian | 8 (21%) |
| Native American/Alaskan | 1 (3%) |
| Hawaiian/Pacific Islander | 1 (3%) |
| Other | 4 (11%) |
| Ethnicity | |
| Hispanic/Latinob | 9 (24%) |
| Substance use behavior (reported across 28 daily morning reports) | |
| Cannabis use days | 5.00 (5.33) |
| Drinking daysb | 5.58 (2.39) |
| Heavy drinking days | 3.76 (2.12) |
| Simultaneous use daysc | 1.94 (1.53) |
| Baseline drinking behavior | |
| Drinks per week | 10.81 (5.94) |
| Drinks per drinking day | 4.83 (2.32) |
Gender identity was asked in addition to biological sex. Gender identity corresponded with biological sex for all participants except for one individual who reported biological sex as male and reported gender identity as trans female and one individual who reported biological sex as female and indicated that they preferred not to report their gender identity.
The 38 college students interviewed about their simultaneous use were more likely to identify as Hispanic or Latino X2(1, N=100) =4.774), p=.029 [9 (24%) vs. 5 (8%)] and reported more drinking days during the 28-day EMA period t(98) = 2.030, p=.045 [5.58 (2.39) vs. 4.44 (2.92) drinking days] than the other college students in the EMA study. No other demographic or drinking behavior measures were found to differ between these students.
Based on n=35 (of 43) who endorsed simultaneous alcohol and cannabis use during the EMA study and were also interviewed about simultaneous use. The majority of these participants (n=22 out of 35) reported a single simultaneous use event during the 28-day EMA period.