Logistic regression analysis of risk factors for 30-day mortality.

<p>Note: Data are presented as median value (interquartile range: Q1-Q3) for continuous variables and number of cases (%) for categorical variables. SCC<i>mec</i>, staphylococcal cassette chromosome <i>mec</i>; HA-MRSA, hospital-associated methicillin-resistant <i>Staphylococcus aureus</i>, defined as an isolate possessing SCC<i>mec</i> type I, II, or III; HAI, hospital-acquired infections; PVL, Panton-Valentine leucocidin; hVISA, vancomycin-heteroresistant <i>S</i>. <i>aureus</i>; MIC, minimum inhibitory concentration.</p><p>^aAll variables with a <i>P</i> value < 0.20 in the univariable analysis were considered for inclusion in the logistic regression model in the multivariable analysis. A forward stepwise selection process was utilized. It was found that only Pitt bacteraemia score, C-reactive protein level, white blood cell count, catheter-related infection as infection source, infection by MRSA with vancomycin MIC ≥ 2 μg/mL, infection by MRSA with vancomycin MIC ≥ 1.5 μg/mL and inappropriate therapy were statistically significant risk factors for 30-day mortality.</p><p>Logistic regression analysis of risk factors for 30-day mortality.