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Drug and alcohol review · Jan 2014
Correlations between prescription opioid analgesic dispensing levels and related mortality and morbidity in Ontario, Canada, 2005-2011.
- Benedikt Fischer, Wayne Jones, Karen Urbanoski, Roger Skinner, and Jürgen Rehm.
- Centre for Applied Research in Mental Health and Addiction, Faculty of Health Sciences, Simon Fraser University, Vancouver, Canada; Social and Epidemiological Research, Centre for Addiction and Mental Health, Toronto, Canada; Department of Psychiatry, University of Toronto, Toronto, Canada.
- Drug Alcohol Rev. 2014 Jan 1;33(1):19-26.
Introduction And AimsPrescription opioid analgesic (POA)-related harms constitute a major public health problem in North America. Ontario features above-average POA use levels in Canada and has seen consistent increases in related mortality and morbidity. Recent studies documented strong correlations between POA dispensing levels and related harm outcomes on population levels. We examined correlations between POA dispensing and key POA-related mortality and morbidity indicators in Ontario, 2005-2011.Design And MethodsCorrelations between (i) annual dispensing levels of four strong POA formulations (fentanyl, hydromorphone, morphine and oxycodone; from IMS Brogan's Compuscript converted to defined daily doses) and POA-related mortality (based on provincial coroner's data) and (ii) annual total POA dispensing and POA-related treatment caseload (from the Drug and Alcohol Treatment Information System) were examined for the study context.ResultsStrong and significant correlations were observed between POA dispensing and mortality for three formulations, namely hydromorphone: 0.98 [95% confidence interval (CI) 0.89-1.00; P<0.001], fentanyl: 0.93 (95% CI 0.58-0.99; P=0.003) and oxycodone: 0.93 (95% CI 0.57-0.99; P=0.003), but not morphine (-0.29; 95% CI-0.86-0.59; P=0.523), as well as for treatment when examining congruent years [0.99 (95% CI 0.92-1.00); P<0.001] and when using a 1-year offset (1.00; 95% CI 0.96-1.00; P<0.001).Discussion And ConclusionsPOA dispensing levels were found to be strongly correlated with mortality and morbidity (treatment) indicators. Targeted and sensible reductions of POA use level would likely constitute a primary measure to reduce POA-related harms on a population level, especially in a jurisdiction with high POA consumption levels.© 2013 Australasian Professional Society on Alcohol and other Drugs.
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