Effectiveness of the intervention on alcohol-related crime, traffic crashes, and inpatient hospital admissions.

a2005 data were excluded from this analysis to allow for the anticipated lag between the implementation and effectiveness of the intervention.bNumber (n) and rate per 1,000 population (rate) per year, averaged across experimental (n = 10) and control (n = 10) communities.cStandard error obtained using jack-knife estimate because of the small number of clusters.dAdjusted for over-dispersion, correlation within communities, community population size, seasonal effects, trends over time, and pre-intervention values. The interaction term tests whether the post-intervention RR for experimental communities is statistically significantly different to that of control communities, after adjusting for pre-intervention ratios.eUnadjusted analysis, controlling for clustering (and population size) only.fStatistically significantly fewer admissions pre-intervention in the experimental, compared to control, communities (RR = 0.50, 95% CI = 0.29 to 0.86, p = 0.02).gStatistically significant at the 5% level.