Journal
AMERICAN JOURNAL OF PREVENTIVE MEDICINE
Volume 53, Issue 6, Pages S172-S181Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.amepre.2017.07.014
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Funding
- U.S. Centers for Disease Control and Prevention (CDC), an Agency of the U.S. Department of Health and Human Services
- Association for Prevention Teaching and Research (APTR) [1U36 OE000005]
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Introduction: The purpose of this study is to investigate comorbidity status and its impact on total medical expenditures in non-institutionalized hypertensive adults in the U.S. Methods: Data from the 2011-2014 Medical Expenditure Panel Survey were used. Patients were included if they had a diagnosis code for hypertension, were aged >= 18 years, and were not pregnant during the study period (N = 26,049). The Elixhauser Comorbidity Index was modified to add hypertension-related comorbidities. The outcome variable was annual total medical expenditures, and a generalized linear model regression (gamma distribution with a log link function) was used. All costs were adjusted to 2014 U.S. dollars. Results: Based on the modified Elixhauser Comorbidity Index, 14.0% of patients did not have any comorbidities, 23.0% had one, 24.4% had two, and 38.7% had three or more. The five most frequent comorbidities were hyperlipidemia, diabetes, rheumatoid arthritis, depression, and chronic pulmonary disease. Estimated mean annual total medical expenditures were $3,914 (95% CI = $3,456, $4,372) for those without any comorbidity; $5,798 (95% CI = $5,384, $6,213) for those with one comorbidity; $8,333 (95% CI = $7,821, $8,844) for those with two comorbidities; and $13,920 (95% CI = $13,166, $14,674) for those with three or more comorbidities. Of the 15 most frequent comorbidities, the condition with the largest impact on expenditures for an individual person was congestive heart failure ($7,380). Hypertensive adults with stroke, coronary heart disease, diabetes, renal diseases, and hyperlipidemia had expenditures that were $6,069, $6,046, $5,039, $4,974, and $4,851 higher, respectively, than those without these conditions. Conclusions: Comorbidities are highly prevalent among hypertensive adults, and this study shows that each comorbidity significantly increases annual total medical expenditures. Published by Elsevier Inc.
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