Table 1.
Characteristics of patients with depression using and not using marijuana.
| Variable | Patients using Marijuana n = 125 (40.7%) |
Patients not using Marijuana n = 182 (59.2%) |
Pa |
|---|---|---|---|
| M (SD) | M (SD) | ||
| Demographic Characteristics | |||
| Race/ethnicity | |||
| —n (% White) | 49 (39.2) | 68 (37.3) | .836 |
| —n (% Black) | 23 (18.4) | 42 (23.0) | .399 |
| —n (% Hispanic) | 32 (25.6) | 35 (19.2) | .253 |
| —n (% Asian) | 16 (12.8) | 27 (14.8) | .735 |
| —n (% other/unknown) | 5 (4.0) | 10 (5.4) | .743 |
| Age | 33.59 (12.82) | 39.68 (12.89) | <.001 |
| Sex—n (% female) | 82 (65.6) | 134 (73.6) | .165 |
| Marital Status—n (% married) | 43 (34.4) | 86 (47.2) | .033 |
| Employment—n (% employed) | 81 (64.8) | 123 (67.5) | .700 |
| Income—n (% ≥ 50k) | 60 (48.0) | 103 (56.5) | .399 |
| Clinical Characteristics | |||
| PHQ-9 Depressionb score | 14.30 (5.84) | 13.64 (5.41) | .316 |
| GAD-7 Anxietyc score | 11.21 (5.42) | 10.56 (4.97) | .289 |
| SF-12 Mental Healthd | 29.12 (9.72) | 29.82 (9.46 | .534 |
| Functioning score | |||
| SF-12 Physical Healthe | 49.31 (10.64) | 49.38 (10.13) | .956 |
| Functioning score | |||
| Medical marijuana use—n(% use) | 33 (26.8) | – | – |
| Alcohol use—n (% alcohol use) | 111 (88.8) | 172 (94.5) | .106 |
| Tobacco use—n(% tobacco use) | 54 (43.2) | 49 (26.9) | <.004 |
| Opioid use—n (% opioid use) | 12 (8.0) | 8 (5.0) | .406 |
| Sedative use—n (% sedative use) | 8 (5.3) | 8 (5.0) | .492 |
| Amphetamine use—n (% amphetamine use) | 2 (1.3) | 5 (3.1) | – |
| Stimulant use—n (% stimulant use) | 2 (1.3) | 5 (3.1) | – |
| Cocaine use—n (% cocaine use) | 3 (2.0) | 2 (1.2) | – |
| Ecstasy use—n (% ecstasy use) | 5 (3.3) | 4 (2.5) | – |
| Treatment Characteristics | |||
| Psychiatry visits (average visitsf) | 1.49 (2.85) | 1.83 (2.84) | .302 |
| MI treatment condition—n (% MI) | 65 (52.0) | 89 (48.9) | .676 |
Note. MI = motivational interviewing treatment condition; − = insufficient data were available to compute p-values.
a
Bivariate analyses were computed using χ2 (categorical) or independent sample t-tests (continuous) variables. Between-group comparisons were not computed for substance use variables because drug and alcohol use variables are not mutually exclusive.
b
Higher mean scores indicate worse depression severity.
c
Higher mean scores indicate worse anxiety severity.
d
Lower mean scores indicate worse mental health functioning.
e
Lower mean scores indicate worse physical health functioning.
f
Average number of psychiatry department visits within 30-days of baseline.