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Table 3 Odds ratios with 95% CI from logistic regression analysis of KDIGO stage 3 acute kidney injury

From: Age of red blood cells and outcome in acute kidney injury

Variable Odds ratio 95% CI lower 95% CI upper P-value
Age, years 1.005 0.984 1.026 0.628
Female gender 0.586 0.306 1.124 0.108
Chronic kidney disease 1.924 0.737 5.021 0.181
SAPS II score without points for age and renal componenents, points 1.060 1.037 1.084 <0.001
Pre-ICU colloids 1.134 0.615 2.093 0.686
Pre-ICU hypovolemia 1.177 0.625 2.219 0.613
RBC, Q2 to Q4 versus Q1 1.066 0.507 2.238 0.867
Units transfused pre-AKI, number 1.076 1.019 1.135 0.008
  1. In total, 404 patients were included in the model. Hosmer-Lemeshow Chi-square 9.390 P = 0.310. Q1 denotes the first and freshest oldest RBC unit quartile, Q2 to Q4 denotes the second to the fourth quartile. SAPS II, simplified acute physiology score, RBC, red blood cell; AKI, acute kidney injury.