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Table 4 Organizational characteristics that show a significant association with risk-adjusted hospital mortality

From: The influence of volume and intensive care unit organization on hospital mortality in patients admitted with severe sepsis: a retrospective multicentre cohort study

Variable Odds ratio (95% confidence interval) P value
Number of admissions with severe sepsis per year (× 10-1) 0.970 (0.943–0.997) 0.029
MCU as step-down facility 1.298 (1.056–1.596) 0.013
  1. Results are based on a multivariate logistic regression analysis. In combination with the risk-adjustment variables, the probability of hospital mortality is calculated as e(logit [p])/(1+ e(logit [p])), where logit(p) = -4.8276 + 0.0601 × SAPS II score + 0.02270 × age -0.02338 × I(sex = Female) + 0.01204 × I(organ failures = 2) + 0.1257 × I(organ failures = 3) + 0.2354 × I(organ failures = 4) + 0.3749 × I(organ failures = 5) - 0.00306 × annual sepsis volume + 0.2601 I(MCU = present). I is the identity function, where I(x) = 1 if x is true, and I(x) = 0 otherwise. SAPS, Simplified Acute Physiology Score; MCU, medium care unit.