This paper presents cost-outcome analyses of the following four transportation injury prevention efforts in native American jurisdictions: (1) the passage and implementation of a primary safety belt law in Navajo Nation; (2) a street lighting project designed to reduce pedestrian crashes in Whiteriver, Arizona; (3) a motor vehicle-livestock crash reduction project in Fort Apache Indian reservation; and (4) a drowning prevention project in Alaska. Pre- and post-intervention data were analysed to estimate projects' impact on injury reduction. Projects' costs were amortised over the time period covered by the evaluation or over the useful life of physical capital invested. Projects' savings were calculated based on estimated reduction in medical and public programme expenses, on estimated decrease in lost productivity, and on estimated quality adjusted life years saved. All four projects yielded positive benefit-cost ratios. The net cost per quality adjusted life years was less than zero for all the projects.
Samenvatting