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Table 2 Multivariable logistic regression model for operative risk mortality in patients with a risk > 25 % at the first stage

From: In search of the ideal risk-scoring system for very high-risk cardiac surgical patients: a two-stage approach

Factor Regression coefficient Odds ratio 95 % C.I. P value
Pulmonary hypertension (>55 mmHg) 1.40 4.1 1.1 – 15.2 0.037
Anemia (HCT < 34 %) 1.31 3.7 1.3 – 10.8 0.017
Serum creatinine (mg/dL) 0.98 2.7 1.2 – 6.1 0.020
Emergency surgery 2.90 18.1 2.9 – 114 0.002
Constant - 3.73    
  1. C.I. confidence interval, HCT hematocrit