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Table 3 Multivariate Cox regression analysis of 28-day mortality in critically ill patients with acute kidney injury

From: Fluid balance and mortality in critically ill patients with acute kidney injury: a multicenter prospective epidemiological study

Characteristic Hazard ratio 95 % CI P value
Age 1.013 1.005–1.020 0.002
SAPS II 1.021 1.014–1.029 <0.001
Cumulative fluid balance in 3 days 1.041 1.012–1.072 0.006
Sepsis 1.278 0.961–1.701 0.092
Postsurgery 0.760 0.595–0.971 0.028
CRRT 3.166 2.463–4.069 <0.001
  1. CI confidence interval, CRRT continuous renal replacement therapy, SAPS II Simplified Acute Physiology Score II