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Table 6 Multivariate regression analysis for predictors of in-hospital mortality

From: Determinants of postoperative acute kidney injury

Variable

Simple OR

P

Adjusted* OR (95% CI)

P a

Age group, n (%)

    

   ≥65 years

2.69

0.002

  

   < 65 years

1

   

ASA physical status

    

   I/II/III

1

 

1

 

   IV/V

15.12

< 0.001

5.17 (2.38 to 11.21)

< 0.001

Temperature

0.71

< 0.001

  

Emergency surgery

4.05

< 0.001

  

High-risk surgery

3.26

< 0.001

2.15 (1.02 to 4.53)

0.043

Congestive heart disease

6.75

< 0.001

2.90 (1.45 to 5.76)

0.002

SAPS II

1.09

< 0.001

1.06 (1.03 to 1.08)

< 0.001

APACHE II

1.27

< 0.001

  

PACU LOS (days)

1.19

< 0.001

  

AKI

14.00

< 0.001

3.12 (1.41 to 6.93)

0.005

  1. aLogistic regression analysis with stepwise forward method was used with an entry criterion of P < 0.05 and a removal criterion of P > 0.1.
  2. *Adjusted to age, ASA physical status, high-risk surgery, congestive heart failure, emergency surgery, SAPS II, APACHE II, PACU LOS, and AKI.
  3. AKI = acute kidney injury; APACHE II = Acute Physiology and Chronic Health Evaluation; ASA = American Society of Anesthesiologists; CI = confidence interval; LOS = length of stay; OR = odds ratio; PACU = post anesthesia care unit; SAPS = Simplified Acute Physiology Score.
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Critical Care

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