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Table 3 Odds ratios of non-medical prescription opioid use as measured by the 2010 CAMH Monitor survey compared to the 2008 and 2009 CAMH Monitor surveys

From: Assessing the prevalence of non-medical prescription opioid use in the Canadian general adult population: evidence of large variation depending on survey questions used

    Total Men Women
Outcome Model Survey year Point estimate 95% Confidence intervals Point estimate 95% Confidence intervals Point estimate 95% Confidence intervals
Non-medical prescription opioid use Model 1 (Unadjusted) 2010 3.99 (2.52 to 6.31) 3.60 (1.89 to 6.88) 4.58 (2.46 to 8.54)
   2008 and 2009 REF - REF - REF -
  Model 2 (Adjusted) 2010 4.12 (2.66 to 6.37) 3.96 (2.27 to 6.93) 4.90 (2.69 to 8.95)
   2008 and 2009 REF - REF - REF -
  1. Model 2 was adjusted for the following variables: gender (only for the regression including both men and women), age, region, income, prescription opioid use, cigarette smoking, weekly binge drinking, cannabis use (past three months) and psychological distress.