Estimating a treatment effect on reoffending by people in prison with an alcohol use disorder: a national matched propensity score analysis

Little is known as to the efficacy of treatment interventions
for an alcohol use disorder (AUD) to reduce reoffending. A
quasi-experimental propensity score matched observational
study was deployed to calculate the average treatment effect
on reoffending for people in prison with an AUD exposed to
prison-based treatment compared to a matched control
group. A one-to-one match without replacement followed by
a marginal Cox proportional hazards time-to-event model with
the treatment group only were also run. No statistically signifi cant difference in reoffending rates and risk of reoffending on
release were noted. Analyses suggest that the treatment
group were more likely to be treated for binge drinking than
individuals assessed who commit crime due to their consump tion of alcohol. The English treatment model is an opportunity
to create an enhanced system that integrates public health
whilst addressing recidivism. Further work is required assess ing the effect of multiple treatments on reoffending

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