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Table 1 Demographic and clinical characteristics of men and women on MMT

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

Variable Men (n = 414) Women (n = 363) p value
Age in years (SD) 39.07 (11.72) 36.88 (10.27) 0.006
Ethnicity (% Caucasian) 347 (84.6%) 288 (80.2%) 0.127
Marital status
 Never married (%) 203 (49.0%) 158 (43.5%) 0.079
 Married/common law/living with partner (%) 129 (31.2%) 109 (30.0%)  
 Widowed/separated/divorced (%) 82 (19.8%) 96 (26.4%)  
Education
 Less than grade 9 (%) 88 (21.4%) 68 (18.9%) 0.008
 Grade 9–12 (%) 233 (56.6%) 177 (49.2%)  
 Trade school, college, university (%) 91 (22.1%) 115 (31.9%)  
Employment (% currently working) 175 (42.3%) 98 (27.0%) <0.001
Smoking status (% current smoker) 336 (81.2%) 320 (88.2%) 0.007
Age of onset of opioid use in years (SD) 24.90 (8.90) 25.00 (8.11) 0.881
Methadone dose in mg/day (SD) 78.15 (48.36) 72.34 (42.63) 0.079
Current treatment duration in years (SD) 4.10 (4.11) 3.98 (4.15) 0.704
Physical functioning (SD) 14.45 (7.74) 16.79 (7.38) <0.001
Psychological functioning (SD) 12.33 (8.82) 15.11 (9.36) <0.001
Cannabis use (% cannabis users) 247 (59.7%) 158 (43.5%) <0.001
Days cannabis use in last 30 (SD) 11.97 (13.54) 7.44 (12.02) <0.001
Average cannabis dose in g/day (SD) 1.48 (1.71) 1.04 (1.03) 0.004
  1. Maximum score for the MAP physical and psychological functioning is 40, with higher scores indicating worse functioning
  2. SD standard deviation