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• W3100481940 abstract "Background and Purpose: The aim of this study was to evaluate and independently validate SAA (serum amyloid A)—a recently discovered blood biomarker—to predict poststroke infections. Methods: The derivation cohort (A) was composed of 283 acute ischemic stroke patients and the independent validation cohort (B), of 367 patients. The primary outcome measure was any stroke-associated infection, defined by the criteria of the US Centers for Disease Control and Prevention, occurring during hospitalization. To determine the association of SAA levels on admission with the development of infections, logistic regression models were calculated. The discriminatory ability of SAA was assessed, by calculating the area under the receiver operating characteristic curve. Results: After adjusting for all predictors that were significantly associated with any infection in the univariate analysis, SAA remained an independent predictor in study A (adjusted odds ratio, 1.44 [95% CI, 1.16–1.79]; P =0.001) and in study B (adjusted odds ratio, 1.52 [1.05–2.22]; P =0.028). Adding SAA to the best regression model without the biomarker, the discriminatory accuracy improved from 0.76 (0.69–0.83) to 0.79 (0.72–0.86; P <0.001; likelihood ratio test) in study A. These results were externally validated in study B with an improvement in the area under the receiver operating characteristic curve, from 0.75 (0.70–0.81) to 0.76 (0.71–0.82; P <0.038). Conclusions: Among patients with ischemic stroke, blood SAA measured on admission is a novel independent predictor of infection after stroke. SAA improved the discrimination between patients who developed an infection compared with those who did not in both derivation and validation cohorts. Registration: URL: https://www.clinicaltrials.gov . Unique identifier: NCT00390962." @default.
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• W3100481940 date "2020-12-01" @default.
• W3100481940 modified "2023-10-18" @default.
• W3100481940 title "SAA (Serum Amyloid A)" @default.
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• W3100481940 doi "https://doi.org/10.1161/strokeaha.120.030064" @default.
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