Table 5 Demographic and clinical characteristics of cannabis users and non-users on MMT
Variable | Cannabis non-users (n = 372) | Cannabis users (n = 405) | p value |
|---|---|---|---|
Age in years (SD) | 39.78 (11.05) | 36.46 (10.94) | <0.001 |
Sex (% female) | 205 (55.1%) | 158 (39.0%) | <0.001 |
Ethnicity (% Caucasian) | 306 (83.4%) | 329 (81.8%) | 0.634 |
Marital status | |||
 Never married (%) | 150 (40.3%) | 211 (52.1%) | 0.004 |
 Married/common law/living with partner (%) | 126 (33.9%) | 112 (27.7%) |  |
 Widowed/separated/divorced (%) | 96 (25.8%) | 82 (20.2%) |  |
Education | |||
 Less than grade 9 (%) | 67 (18.2%) | 89 (22.0%) | 0.087 |
 Grade 9–12 (%) | 190 (51.6%) | 220 (54.5%) |  |
 Trade school, college, university (%) | 111 (30.2%) | 95 (23.5%) |  |
Employment (% currently working) | 132 (35.5%) | 141 (34.8%) | 0.880 |
Smoking status (% current smoker) | 301 (80.9%) | 355 (87.7%) | 0.010 |
Age of onset of opioid use in years (SD) | 26.12 (9.08) | 23.86 (7.86) | <0.001 |
Methadone dose in mg per day (SD) | 78.77 (46.54) | 72.36 (45.02) | 0.053 |
Current treatment duration in years (SD) | 4.26 (4.35) | 3.85 (3.91) | 0.164 |
Physical functioning (SD) | 15.06 (7.92) | 16.02 (7.38) | 0.085 |
Psychological functioning (SD) | 12.90 (9.57) | 14.27 (8.76) | 0.040 |