Racial or ethnic differences in hospitalization for heart failure among elderly adults: Medicare, 1990 to 2000.

BACKGROUND: Little is known about racial or ethnic differences in hospitalizations for heart failure (HF), the most common hospital diagnosis for Medicare enrollees.
METHODS: Using data from the Medicare Provider Analysis Record (1990-2000), we analyzed data for Medicare beneficiaries aged > or = 65 years who were hospitalized with a first-listed diagnosis of HF (International Classification of Diseases, Ninth Revision, Clinical Modification code 428). We assessed racial/ethnic differences in annual prevalences and discharge outcomes for patients hospitalized in 2000.
RESULTS: Prevalence of HF hospitalization increased over the 10-year period for white, black, Hispanic, and Asian enrollees. Prevalence was highest among those aged > or = 85 years; the age-adjusted prevalence was greater among men than women. Compared with white enrollees in 2000, the likelihood of a HF hospitalization was 1.5 times greater among black enrollees, 1.2 times greater among Hispanic enrollees, and 0.5 times less likely among Asian enrollees after adjustment for age and sex (P < .05 for all). Compared with white patients hospitalized with HF, black and Hispanic (but not Asian) patients were less likely than white patients to die in a hospital. A greater proportion of black, Hispanic, and Asian patients were discharged to home than white patients during 2000.
CONCLUSION: Prevalence of HF hospitalization was highest among black and Hispanic Medicare enrollees. Because Hispanic Americans and the elderly are the fastest-growing segments of the US population, HF will increase in importance as a public health concern and will require increased focus on culturally competent prevention and treatment strategies in the next decade.