Citation:

Schmeltz, M., E. Petkova, AND J. Gamble. Economic burden of hospitalizations for heat-related illnesses in the United States, 2001-2010. International Journal of Environmental Research and Public Health. Molecular Diversity Preservation International, Basel, Switzerland, 13(9):894, (2016). https://doi.org/10.3390/ijerph13090894

Impact/Purpose:

This study aims to improve our understanding of the costs of public health preparedness and responses to extreme heat events by calculating the financial burden of hospitalizations due to heat-related illnesses in the United States from 2001 to 2010 with a targeted analysis of the differences across racial/ethnic and socioeconomic groups.

Description:

Understanding how heat waves affect morbidity and mortality, as well as the associated economic costs, is essential for characterizing the human health impacts of extreme heat under a changing climate. Only a handful of studies have examined healthcare costs associated with exposures to high temperatures. This research explores costs associated with hospitalizations for heat-related illness (HRI) in the United States using the 2001 to 2010 Nationwide Inpatient Sample (NIS). Descriptive statistics of patient data for HRI hospitalizations were examined and costs of hospitalizations were reported using the all-payer inpatient cost-to-charge ratio. Costs were examined using a log-gamma model with patient and hospital characteristics included as fixed effects. Adjusted mean costs were then compared across racial groups. The mean costs of HRI hospitalizations were higher among racial/ethnic minorities compared to Whites, who accounted for almost 65% of all HRI hospitalizations. Observed differences in costs based on income, insurance, and gender were also significant. These results suggest that these populations are suffering disproportionately from health inequity, thus, they could shoulder greater disease and financial burdens due to climate change. These findings may have important implications in understanding the economic impact public health planning and interventions will have on preventing hospitalizations related to extreme heat.

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