Table 3

Multivariate regression analysis for predictors of mortality
Variable Simple OR(95% CI) p Adjusted*OR(95%CI) Pa
Age 1.04 (0.99 – 1.10) 0.109 0.97 (0.89 – 1.05) 0.438
Length of PACU stay (minutes) 1.01 (0.99 – 1.03) 0.276 0.98 (0.95 – 1.01) 0.263
Erythrocytes (Unit) 2.92 (1.25 – 6.81) 0.013 3.06 (0.95 – 9.84) 0.061
RCRI 0.019 0.152
   ≤2 1 1
   >2 16.8 (1.59 – 178) 6.52 (0.50 – 84.45)
Delirium 13.78(3.42 55.60) <0.001 9.33(1.35 64.61) 0.024
SAPS II 1.07 (1.02 – 1.12) 0.011 1.06 (0.98 – 1.15) 0.169

a) Logistic regression analysis with enter method was used.

SAPS, Simplified Acute Physiology Score; APACHE II, Acute Physiology and Chronic Health Evaluation; RCRI, Revised Cardiac Risk Index; OR; Odds Ratio; CI, Confidence Interval.

*Adjusted for age, length of PACU stay, erythrocytes, RCRI and SAPS II. All variables were forced into the model in logistic regression analysis.

Veiga et al. BMC Anesthesiology 2013 13:4   doi:10.1186/1471-2253-13-4

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