Quantifying and explaining accessibility with application to the 2009 H1N1 vaccination campaign

摘要: Accessibility and equity across populations are important measures in public health. This paper is specifically concerned with potential spatial accessibility, or the opportunity to receive care as moderated by geographic factors, horizontal equity, fairness regardless of need. Both accessibility were goals 2009 vaccination campaign for novel H1N1a influenza virus, including during period when demand vaccine exceeded supply. Distribution system design can influence at local level. We develop a general methodology that integrates optimization, game theory, statistics measure network, where we quantify travel distance scarcity. estimate make inference on (census-tract level) associations between geographic, socioeconomic, health infrastructure factors identify inequities H1N1 U.S. find there access level these associated population density infrastructure. Our measuring explaining leads policy recommendations federal, state, officials. The spatial-specific results inform development equitable distribution plans future efforts.