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Table 2 Multivariate Generalized Estimating Equation model for predictors of treatment satisfaction

From: Client satisfaction among participants in a randomized trial comparing oral methadone and injectable diacetylmorphine for long-term opioid-dependency

Variable TotalS i † Q1i † Q2i † Q3 i † Q4i † Q5i † Q6i † Q7 i † Q8 i †
Randomization group: Injectable vs. Oral 1.32 (0.81-2.16) 1.05 (0.74-1.50) 1.81 (1.26-2.59) 2.40 (1.61-3.56) 1.94 (1.26-2.98) 1.14 (0.78-1.67) 2.35 (1.62-3.41) 1.16 (0.79-1.72) 2.29 (1.51-3.48)
Gender: Male vs. Female 0.65 (0.41-1.03) 0.84 (0.58-1.21) 0.75 (0.52-1.07) 0.82 (0.56-1.20) 0.55 (0.36-0.86) 0.74 (0.51-1.09) 0.74 (0.51-1.08) 0.86 (0.60-1.25) 0.63 (0.42-0.96)
Age 0.71 (0.54-0.95) 0.99 (0.80-1.22) 0.81 (0.65-1.00) 0.69 (0.55-0.86) 0.68 (0.52-0.88) 0.74 (0.58-0.93) 0.79 (0.63-1.00) 0.75 (0.60-0.94) 0.78 (0.60-1.00)
Ethnicity: Aboriginal vs. Non-Aboriginal 0.70 (0.41-1.20) 0.80 (0.53-1.22) 0.76 (0.50-1.15) 0.99 (0.65-1.49) 0.55 (0.34-0.89) 1.01 (0.67-1.54) 0.99 (0.63-1.55) 0.72 (0.47-1.11) 0.50 (0.31-0.81)
Site: Vancouver vs. Montreal 0.97 (0.54-1.74) 0.72 (0.45-1.16) 1.51 (0.98-2.33) 1.31 (0.82-2.10) 2.16 (1.31-3.54) 1.19 (0.75-1.88) 1.07 (0.68-1.69) 1.00 (0.63-1.58) 1.74 (1.06-2.84)
Treatment Compliance:a Yes vs. No 1.80 (1.08-3.01) - 2.18 (1.51-3.12) - 2.44 (1.60-3.72) 1.97 (1.37-2.86) 2.10 (1.45-3.03) - 1.95 (1.29-2.94)
Treatment Response:b Yes vs. No - - 1.53 (1.09-2.13) - - 1.52 (1.06-2.17) - -  
Treatment Retention:c Yes vs. No - - - 2.31 (1.41-3.80) - - - 2.15 (1.36-3.40)  
Current Psychological Symptomsd 0.94 (0.91-0.97) - 0.95 (0.93-0.97) 0.95 (0.93-0.97) 0.95 (0.93-0.97) 0.96 (0.94-0.98) 0.95 (0.93-0.97) 0.95 (0.93-0.97) 0.95 (0.92-0.97)
Current Physical Healthd - 0.95 (0.93-0.97) - - - - - - -
Current Legal Situatione - - - 0.92 (0.85-0.99) - - - - -
Current Drug Usee 0.81 (0.72-0.92) 0.96 (0.93-0.99) - 0.79 (0.71-0.87) 0.89 (0.80-0.99) 0.90 (0.82-1.00) 0.85 (0.78-0.94) 0.81 (0.74-0.89) -
Family/Social Relationse - - - - - - - - 0.90 (0.82-0.99)
Heroin Use at Baselinef - - - - - 0.96 (0.94-0.99) - - -
  1. Refers to CSQ-8 (TotalS: Total Satisfaction score; Q1: How would you rate the quality of service received; Q2: Did you get the kind of service you wanted; Q3: To what extent has our program met your needs; Q4: If a friend were in need of similar help, would you recommend our program to him or her; Q5: How satisfied are you with the amount of help you have received; Q6: Have the services you received helped you to deal more effectively with your problems; Q7: In an overall, general sense, how satisfied are you with the service you have received; Q8: If you were to seek help again, would you come back to our program?)
  2. i Odds Ratio (95% Confidence Interval). P values highlighted: p ≤ 0.05
  3. (a) Retention to allocated treatment: at least 20 out of prior 30 days;
  4. (b) Treatment response defined as improvement of at least 20% in Drug and/or Legal EuropASI composite scores, with no deterioration higher than 10% in more than one of the remaining composite scores;
  5. (c) Retention to addiction treatment or abstinent: at least 10 out of prior 14 days;
  6. (d) MAP (Maudsley Addiction Profile) in the prior month. Scores range from 0 to 40; higher scores are indicative of more severe problems. Higher scores are indicative of more severe problems;
  7. (e) EuropASI (European version of the Addiction Severity Index) in the prior month. Sub-scale scores range from 0 to 1; higher scores are indicative of more severe problems;
  8. (f) In the prior 30 days.