Table 2.
Demographic characteristics and cannabis use variables of adolescents who did versus did not engage in solitary cannabis use
| Characteristic and variable | Solitary Users | Social-only Users | X2 | F | p | Effect Size | ||
|---|---|---|---|---|---|---|---|---|
|
| ||||||||
| n/Mean | %/SD | n/Mean | %/SD | |||||
| Gender | ||||||||
| Male | 177 | 61.2 | 66 | 41.8 | 15.6 | <.001 | Phi=.19 | |
| Female | 112 | 38.8 | 92 | 58.2 | ||||
| Race/Ethnicity a | ||||||||
| Caucasian | 235 | 81.3 | 135 | 85.4 | 1.2 | 0.27 | Phi=.05 | |
| African American | 54 | 18.7 | 23 | 14.6 | ||||
| SES | 37.6 | 12.3 | 36.9 | 12.6 | .31 | 0.58 | ηp2 =.00 | |
| Recruitment Source | ||||||||
| Clinical | 255 | 72.0 | 99 | 28.0 | 40.6 | <.001 | Phi=.30 | |
| Community | 34 | 36.6 | 59 | 63.4 | ||||
| Adolescent cannabis use days per month b | 9.2 | 6.1 | 3.9 | 4.2 | 97.9 | <.001 | ηp2 =.18 | |
| Adolescent CUD symptoms b | 2.5 | 1.5 | .96 | 1.1 | 120.4 | <.001 | ηp2 =.21 | |
Note. CUD=cannabis use disorder; SES= socioeconomic status.
a
Only one individual did not self-identify as either Caucasian or African American, and was not included in this analysis.
b
Values represent averages across ages 12–18. Separate tests were also run for each age group, and the significant results above remained significant at all ages. Results (not shown) did not change when gender and recruitment source were entered as covariates in these analyses.