Table 1. Demographic characteristics of patients on methadone treatment for opioid addiction.
| Characteristic | Total (n = 231) | Men (n = 131) | Women (n = 100) |
|---|---|---|---|
| Age in years; mean (SDa) | 36.9 (10.4) | 38.3 (11.0) | 35.2 (9.4) |
| BMIb; mean (SD) | 26.7 (6.4) | 26.9 (5.0) | 26.6 (8.0) |
| Married/common law; n (%) | 91 (39.4) | 53 (40.5) | 38 (38.0) |
| Employed; n (%) | 70 (30.3) | 45 (34.4) | 25 (25.0) |
| Completed post-secondary education; n (%) | 78 (33.8) | 33 (25.2) | 45 (45.0) |
| Age of initial opioid use in years; mean (SD) | 23.3 (9.3) | 23.3 (9.9) | 23.3 (8.5) |
| Current cigarette smokers; n (%) | 207 (89.6) | 116 (88.5) | 91 (91.0) |
| Number of cigarettes smoked/day; mean (SD) | 16.0 (11.1) | 17.5 (12.0) | 14.1 (9.5) |
| Polysubstance use; n (%) | 102 (44.3) | 60 (45.4) | 43 (43.0) |
| Psychiatric comorbidity, self-reported; n (%) | 109 (47.2) | 55 (42.0) | 54 (54.0) |
| Methadone dose (mg); mean (SD) | 87.2 (60.3) | 90.2 (65.6) | 83.3 (52.8) |
| Duration on MMTc (months); mean (SD) | 38.8 (41.8) | 40.6 (38.7) | 36.4 (45.6) |
| Illicit opioid use based on urine test results; mean (SD) | 18.7 (23.2) | 17.0 (21.3) | 20.9 (25.6) |
aSD: standard deviation.
bBMI: Body Mass Index (kg/m2).
cMMT: Methadone Maintenance Treatment.