A mapping review of evaluations of alcohol policy restrictions targeting alcohol-related harm in night-time entertainment precincts

BACKGROUND: Alcohol-related harm in night-time entertainment precincts (NEPs) is disproportionately high for the amount of alcohol consumed within these areas. Previous evaluations of alcohol restrictions targeting NEPs have often looked at restrictions in isolation and not attempted to create a comprehensive theoretical explanation that takes multiple restrictions into account. The aim of this review is to establish which restrictions have been adequately evaluated in previous literature, and to identify any research which may provide the basis for a theoretical model that explains the interactions between different alcohol restrictions in NEPs and their combined impact on alcohol-related-harm. METHODS: A mapping review was conducted to plot evaluations of the effectiveness of different alcohol restrictions in NEPs at reducing assault and injury rates (protocol PROSPERO 2017: CRD42017069773). Six databases and 145 websites were searched, results were categorised based on the type of restrictions evaluated: Outlet density, trading hours, lockouts, price, patron bans, and drinks restrictions. RESULTS: Forty-eight articles were identified out of 20,743 returned by the systematic search. Thirty-five of these papers were original works, and 13 reviews. Outlet density was examined in 15 of the papers, trading hours in 30, lockouts in 21, price in 2, patron bans in 7 and drinks restrictions in 15. CONCLUSION: No pre-existing theoretical models were identified. Outlet density, trading hours, and price restrictions all had evidence that suggested high levels of effectiveness in NEPs and would be suitable for inclusion in a theoretical model. More research is required before attempting to include lockouts, patron bans and drinks restrictions in a theoretical model. Future research should focus on establishing a theoretical model based on evidence of effective alcohol restrictions and gathering an evidence base for under-researched restrictions.