Table 1.
Sociodemographic, Psychosocial, and Substance Use Differences between SAM Users, CAM Users, and Alcohol-only Users (N = 1,206)
| Variable | χ2 or F | Effect size (Φ or η2) | SAM Users (N = 678) | CAM Users (N = 249) | Alcohol only Users (N = 279) |
|---|---|---|---|---|---|
| School# | 17.97** | .12 | |||
| A (illegal) | 29.4%a | 34.8%b | 35.8%b | ||
| B (decriminalized) | 35.3% | 26.9% | 38.8% | ||
| C (legal for 21+) | 36.0% | 37.2% | 26.8% | ||
| Birth sex# | 5.63 | .07 | |||
| Male | 38.8%a | 38.2%a | 30.8%b | ||
| Female | 61.2% | 61.8% | 69.2% | ||
| Gender# | 9.03 | .09 | |||
| Male | 38.9%a | 38.8%a | 30.8%a | ||
| Female | 59.5% | 59.0% | 67.7% | ||
| Other | 1.6% | 3.2% | 1.4% | ||
| Age# | 3.43 | .05 | |||
| 21+ | 32.7%a | 31.7%a | 38.4%a | ||
| Race# | 16.31* | .12 | |||
| Asian | 11.4%a | 16.1%b | 14.0%a | ||
| Black | 3.3% | 1.6% | 4.3% | ||
| White | 71.1% | 61.7% | 69.9% | ||
| Multi-racial | 9.3% | 12.9% | 7.9% | ||
| Other | 4.9% | 3.9% | 3.9% | ||
| Ethnicity# | 9.18* | .09 | |||
| Hispanic/Latinx | 12.2%a | 17.3%b | 8.6%a | ||
| Delinquent# | 26.01*** | .15 | |||
| Yes | 16.7%a | 8.4%b | 5.4%b | ||
| Positive Urgency+ | 8.91*** | .02 | 11.4 (3.7)a | 10.6 (3.5)b | 10.4 (3.6)b |
| Negative Urgency+ | 3.41* | .01 | 12.2 (4.1)a | 11.5 (4.2)b | 11.6 (4.2)b |
| Sensation Seeking+ | 6.72** | .01 | 15.5 (4.1)a | 14.9 (4.4)ab | 14.4 (4.1)b |
| 3-mo frequency alcohol use+ | 34.73*** | .05 | 20.2 (16.7)a | 12.3 (12.5)b | 13.4 (13.4)b |
| 30-day freq heavy drink+ | 33.76*** | .05 | 4.0 (4.1)a | 2.4 (3.4)b | 2.2 (2.9)b |
| 3-mo freq marijuana use+ | 82.71*** | .08 | 33.6 (33.6)a | 12.6 (22.9)b | -- |
| Hours high typical week+ | 68.94*** | .07 | 11.7 (13.6)a | 4.2 (6.4)b | -- |
| Past-year freq SAM use+† | 35.49*** | .10 | 26.90(42.68)a | 4.93 (9.62) b | 4.13 (7.15)c |
| Total consequences+ | 74.39*** | .11 | 8.8 (6.1)a | 6.0 (4.9)b | 4.3 (4.0)c |
| Alcohol-attributed conseq+ | 7.36*** | .01 | 5.4 (4.7)a | 4.7 (4.7)b | 4.3 (4.0)b |
| Marijuana-attributed conseq+ | 25.71*** | .03 | 3.5 (4.0)a | 2.1 (2.9)b | -- |
| SAM-attributed conseq+ | -- | -- | 2.3 (3.4) | -- | -- |
#
Percentages, chi-square coefficients, and phi coefficients presented;
+
Means (and standard deviations), F-tests (df = 2, 1203), and eta-squared presented.
†
Assessed at baseline.
Means in a row without a common superscript letter significantly differ at p < 0.05.
Other gender includes Trans male/Trans man; Trans female/Trans woman; Gender queer/Gender non-conforming; Different identity.
Other race includes American Indian, Pacific Islander, and “Other.”
Freq = frequency; Conseq = consequence score.
*
p < .05;
**
p < .01;
***
p < .001