Differences in outcomes of mandatory motorcycle helmet legislation by country income level: A systematic review and meta-analysis.
Jacob R LepardRiccardo SpagiariJacquelyn CorleyErnest J BarthélemyEliana E KimRolvix H PattersonSara VenturiniMegan E H StillYu Tung LoGail RosseauRania A MekaryKee B ParkPublished in: PLoS medicine (2021)
In this study, we observed that mandatory helmet laws had substantial public health benefits in all income contexts, but some outcomes were diminished in LMIC settings where additional measures such as public education and law enforcement might play critical roles.