RT Journal Article T1 Survival following Staphylococcus aureus bloodstream infection: A prospective multinational cohort study assessing the impact of place of care. A1 Nambiar, Kate A1 Seifert, Harald A1 Rieg, Siegbert A1 Kern, Winfried V A1 Scarborough, Matt A1 Gordon, N Claire A1 Kim, Hong Bin A1 Song, Kyoung-Ho A1 Tilley, Robert A1 Gott, Hannah A1 Liao, Chun-Hsing A1 Edgeworth, Jonathan A1 Nsutebu, Emmanuel A1 López-Cortés, Luis Eduardo A1 Morata, Laura A1 Walker, A Sarah A1 Thwaites, Guy A1 Llewelyn, Martin J A1 Kaasch, Achim J A1 International Staphylococcus aureus collaboration (ISAC) study group (with linked authorship to members in the Acknowledgements) and the ESCMID Study Group for Bloodstream Infections and Sepsis (ESGBIS), K1 Bacteremia K1 Mortality K1 Observational study K1 Quality measures K1 Staphylococcus aureus AB Staphylococcus aureus bloodstream infection (SAB) is a common, life-threatening infection with a high mortality. Survival can be improved by implementing quality of care bundles in hospitals. We previously observed marked differences in mortality between hospitals and now assessed whether mortality could serve as a valid and easy to implement quality of care outcome measure. We conducted a prospective observational study between January 2013 and April 2015 on consecutive, adult patients with SAB from 11 tertiary care centers in Germany, South Korea, Spain, Taiwan, and the United Kingdom. Factors associated with mortality at 90 days were analyzed by Cox proportional hazards regression and flexible parametric models. 1851 patients with a median age of 66 years (64% male) were analyzed. Crude 90-day mortality differed significantly between hospitals (range 23-39%). Significant variation between centers was observed for methicillin-resistant S. aureus, community-acquisition, infective foci, as well as measures of comorbidities, and severity of disease. In multivariable analysis, factors independently associated with mortality at 90 days were age, nosocomial acquisition, unknown infective focus, pneumonia, Charlson comorbidity index, SOFA score, and study center. The risk of death varied over time differently for each infective focus. Crude mortality differed markedly from adjusted mortality. We observed significant differences in adjusted mortality between hospitals, suggesting differences in quality of care. However, mortality is strongly influenced by patient mix and thus, crude mortality is not a suitable quality indicator. YR 2018 FD 2018-09-01 LK http://hdl.handle.net/10668/12902 UL http://hdl.handle.net/10668/12902 LA en DS RISalud RD Apr 6, 2025