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Table 5 Demographic and clinical characteristics of cannabis users and non-users on MMT

From: Association between cannabis use and methadone maintenance treatment outcomes: an investigation into sex differences

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
  1. Maximum score for the MAP physical and psychological functioning is 40, with higher scores indicating worse functioning
  2. SD standard deviation