• Reetu Verma, Samantha Clark, Jonathon Leider, and David Bishai.
• Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD.
• Health Serv Res. 2017 Feb 1; 52 (1): 176-190.

ObjectiveTo understand the relationship between state-level spending by public health departments and the incidence of three vaccine preventable diseases (VPDs): mumps, pertussis, and rubella in the United States from 1980 to 2009.Data SourcesThis study uses state-level public health spending data from The Census Bureau and annual mumps, pertussis, and rubella incidence counts from the University of Pittsburgh's project Tycho.Study DesignOrdinary least squares (OLS), fixed effects, and random effects regression models were tested, with results indicating that a fixed effects model would be most appropriate model for this analysis.Principal FindingsModel output suggests a statistically significant, negative relationship between public health spending and mumps and rubella incidence. Lagging outcome variables indicate that public health spending actually has the greatest impact on VPD incidence in subsequent years, rather than the year in which the spending occurred. Results were robust to models with lagged spending variables, national time trends, and state time trends, as well as models with and without Medicaid and hospital spending.ConclusionOur analysis indicates that there is evidence of a significant, negative relationship between a state's public health spending and the incidence of two VPDs, mumps and rubella, in the United States.© Health Research and Educational Trust.

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