Skip to main content

Table 1 Baseline characteristics for each transition group

From: Differential long-term outcomes for voluntary and involuntary transition from injection to oral opioid maintenance treatment

Variable at baseline Injectable DAM or HDM (N = 139)
Withdraw/drop out (N = 28) Involuntary transition (N = 95) Voluntary transition (N = 16)
Agea 39.7 ± 7.6 40.4 ± 7.9 37.6 ± 7.6
Female 9 (32.1%) 37 (38.9%) 4 (25.0%)
Aboriginal 9 (39.1%) 22 (29.3%) 1 (12.5%)
Chronic medical problem 19 (67.9%) 51 (53.7%) 7 (43.8%)
Previous MMT attempts 3.4 ± 1.7 3.1 ± 1.8 2.8 ± 1.0
Injecting drugsa 16.7 ± 7.9 16.9 ± 10.2 14.9 ± 8.0
Heroin use prior monthb 27.7 ± 5.2 26.3 ± 8.2 26.4 ± 7.0
Cocaine use prior monthb 20.8 ± 11.7 15.3 ± 12.6 14.9 ± 12.0
Illegal activities prior month b, c 19.68 ± 11.43 14.60 ± 12.68 8.94 ± 11.66
Injecting prior monthb 16.71 ± 7.88 16.91 ± 10.23 14.88 ± 8.02
EuropASI-Drugd 0.57 ± 0.14 0.52 ± 0.14 0.55 ± 0.18
EuropASI-Legald 0.45 ± 0.18 0.36 ± 0.26 0.27 ± 0.28
EuropASI-Medicald 0.43 ± 0.33 0.34 ± 0.35 0.41 ± 0.35
EuropASI-Econd 0.88 ± 0.29 0.92 ± 0.23 0.83 ± 0.32
EuropASI-Job Satisfactiond 0.19 ± 0.26 0.26 ± 0.33 0.27 ± 0.34
EuropASI-Family d, e 0.11 ± 0.14 0.08 ± 0.19 0.22 ± 0.26
EuropASI-Sociald 0.16 ± 0.22 0.10 ± 0.18 0.17 ± 0.23
EuropASI-Psychiatricd 0.24 ± 0.19 0.19 ± 0.21 0.26 ± 0.25
EQ5D (US weight)f 0.68 ± 0.21 0.72 ± 0.2 0.71 ± 0.22
EQ5D (UK weight)g 0.56 ± 0.31 0.62 ± 0.31 0.61 ± 0.34
MAP-Physicalh 17.64 ± 7.54 14.74 ± 7.35 15.44 ± 9.65
MAP-Psychologicalh 15.5 ± 8.57 13.87 ± 7.78 14.81 ± 11.26
  1. Numbers are: Mean ± standard deviation or N (%).
  2. (a)Years.
  3. (b)Days.
  4. (c)Analysis of variance; F-test = 4.00, df = 2, 136, p-value = 0.021.
  5. (d)EuropASI (European version of the Addiction Severity Index); sub-scale scores range from 0 to 1; higher scores are indicative of more severe problems.
  6. (e)Analysis of variance; F-test = 3.73, df = 2, 136, p-value = 0.026.
  7. (f)EQ5D (Euroquol) US weights: Scores range from -0.11 to 1; higher scores are indicative of better health status.
  8. (g)EQ5D (Euroquol) UK weights: Scores range from -0.594 to 1; higher scores are indicative of better health status.
  9. (h)MAP (Maudsley Addiction Profile). Scores range from 0 to 40; higher scores are indicative of more symptoms.