Arch Intern Med
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Infections occurring among outpatients having recent contact with the health care system have been termed health care-associated infections. The objective of this study was to analyze the impact of health care-associated status on effectiveness of initial therapy in hospitalized patients with bloodstream infections. ⋯ Among patients treated in the hospital for bloodstream infection, health care-associated status was an independent predictor of ineffective initial antibiotic therapy. Hospitalization within 90 days prior to hospital admission was the component of health care-associated status most strongly associated with ineffective initial therapy.