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Table 3 Results obtained by the stepwise process of variable selection

From: A straightforward approach to designing a scoring system for predicting length-of-stay of cardiac surgery patients

Step number

Variable entered

AUC value

1

Low postoperative cardiac output

0.7442

2

Postoperative creatinine

0.8342

3

Extracorporeal circulation time

0.8507

4

Age

0.8551

5

Postoperative bilirubin

0.8589

6

Chronic dialysis

0.8612

7

Acute myocardial infarction

0.8631

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BMC Medical Informatics and Decision Making

ISSN: 1472-6947

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