Drought severity and all-cause mortality rates among adults in the United States: 1968-2014.

ABSTRACT:

Background

Little is known about the effect of drought on all-cause mortality, especially in higher income countries such as the United States. As the frequency and severity of droughts are likely to increase, understanding the connections between drought and mortality becomes increasingly important.

Methods

Our exposure variable was an annual cumulative drought severity score based on the 1-month, county-level Standardized Precipitation Evapotranspiration Index. The outcome variables of demographic subgroup-specific all-cause mortality count data per year were obtained from the National Vital Statistics System. Any counts below 10 deaths were censored in that demographic group per county. We modeled county-stratum-year mortality using interval-censored negative binomial reg

SUBMITTER: Lynch KM 

PROVIDER: S-EPMC7236144 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature