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What portion of inpatients in U.S. acute care hospitals acquire an infection during their stay in the hospital?

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A 2014 study published by the New England Journal of Medicine estimated that 4.0% of inpatients in U.S. acute care hospitals acquire an infection during their stay in the hospital. This impacted about "648,000 inpatients with a total of approximately 721,800 such infections in 2011." The study determined these figures by studying patients who "were receiving antimicrobial agents" at 183 hospitals. As the paper details, "antimicrobial therapy is a sensitive proxy indicator for health care-associated infections (sensitivity, 95 to 100%)."

DocumentationHospital-Acquired Infections Study Methodology Supplement




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