Hospitalizations of older patients with human immunodeficiency virus in the United States.

BACKGROUND: Older adults represent a growing percentage of the United States (US) population living with human immunodeficiency virus (HIV). The Emergency Department plays an integral role in the identification and initial evaluation and treatment of patients with HIV. OBJECTIVE: We sought to estimate the number of hospitalizations of older adults (age ≥ 50 years) with HIV in the United States from 2000 to 2006 and compare features of this population to younger adults with HIV. Clinical and demographic characteristics of the younger cohort (19-49 years) and two older cohorts (ages 50-64 and ≥ 65 years) were examined and compared. METHODS: Data from the Nationwide Inpatient Sample was used to compare the three groups of HIV-positive patients. Comparisons between the most common discharge diagnoses and primary procedures were also made. RESULTS: Older adults with HIV constitute almost one quarter of the hospitalizations of adults with HIV. Older adults with HIV were more likely to be male, have a significantly higher average hospital charge, and have a longer length of stay than younger adults with HIV. Pneumonia and fluid and electrolyte disorders were common diagnoses among all three age cohorts. CONCLUSIONS: Older HIV patients were more likely to die during hospitalization compared with younger adults with HIV and older adults without HIV. Admissions for older HIV patients almost doubled during the study period and future studies should examine whether this is due to aging of the current HIV population or new infections.