Purpose: To examine differential associations between health literacy (HL) and end-of-life (EOL) care expenditures by rurality.
Methods: This cross-sectional study included all urban and rural counties in the United States. County-level HL data were estimated using 2010 US Census and 2011 American Community Surveys data; EOL expenditures in 2010 were derived from the Dartmouth Atlas of Health Care database. Hierarchical generalized linear regressions were used to assess associations between HL and EOL care, controlling for county-level characteristics and focusing on rurality (with areas classified as urban, rural micropolitan, or rural noncore).
Findings: Of 3,137 US counties, 100 (3.2%) counties where 7.6 million Americans live had low HL (LHL). Counties with LHL had significantly higher average expenditures in the last 6 months of life and during terminal hospitalization than counties with high HL (HHL) (both P < .001). There was a statistically significant interaction between HL and rurality (P < .001). EOL expenditures were significantly higher in LHL counties than HHL counties in urban areas, while no such relationship appeared in rural areas. Average estimated EOL expenditures among LHL counties decreased by rurality ($16,953, $14,939, and $12,671 for urban, rural micropolitan, and rural noncore areas, respectively), while average estimated expenditures in HHL counties were around $14,000 in each of these areas.
Conclusions: HL and EOL expenditures were inversely associated with urban America but unrelated to rural areas. Counties with HHL had constant expenditures regardless of rurality. Interventions targeting HL may help reduce EOL expenditures and rural-urban disparities in EOL care.
Keywords: EOL care; expenditures; health literacy; rurality.
© 2020 National Rural Health Association.