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Drug harms in the UK: a multicriteria decision analysis

Summary

Prof David J Nutt FMedSci , Leslie A King PhD , Lawrence D Phillips PhD , on behalf of the Independent Scientific Committee on Drugs

www.thelancet.com/ 1 november 2010

Prof David J Nutt FMedSci , Leslie A King PhD , Lawrence D Phillips PhD , on behalf of the Independent Scientific Committee on Drugs

Background

Proper assessment of the harms caused by the misuse of drugs can inform policy makers in health, policing, and social care. We aimed to apply multicriteria decision analysis (MCDA) modelling to a range of drug harms in the UK.

Methods

Members of the Independent Scientific Committee on Drugs, including two invited specialists, met in a 1-day interactive workshop to score 20 drugs on 16 criteria: nine related to the harms that a drug produces in the individual and seven to the harms to others. Drugs were scored out of 100 points, and the criteria were weighted to indicate their relative importance.

Findings

MCDA modelling showed that heroin, crack cocaine, and metamfetamine were the most harmful drugs to individuals (part scores 34, 37, and 32, respectively), whereas alcohol, heroin, and crack cocaine were the most harmful to others (46, 21, and 17, respectively). Overall, alcohol was the most harmful drug (overall harm score 72), with heroin (55) and crack cocaine (54) in second and third places. Cannabis (20)

Interpretation

These findings lend support to previous work assessing drug harms, and show how the improved scoring and weighting approach of MCDA increases the differentiation between the most and least harmful drugs. However, the findings correlate poorly with present UK drug classification, which is not based simply on considerations of harm.

Funding

Centre for Crime and Justice Studies (UK).

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Study: drug-harms-in-the-uk-a-multicriteria-decision-analysis-1.pdf
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published Saturday 6 November 2010 00:49

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