Table 2 COX regression analysis of univariate and multivariate factors influencing 2-year overall survival

Age (years)

1.03

1.015

1.039

< 0.001

1.02

1.00

1.04

0.02

Gender

0.94

0.71

1.25

0.68

Transfusion of RBC

3.53

2.55

4.87

< 0.001

0.77

0.39

1.54

0.46

Endocrine concomitant disease

0.98

0.71

1.33

0.87

GI concomitant disease

2.07

1.56

2.73

< 0.001

1.68

1.1

2.57

0.016

Hematologic concomitant disease

1.21

0.67

2.17

0.53

Infection concomitant disease

0.95

0.60

1.49

0.81

Cardiovascular concomitant disease

0.94

0.71

1.25

0.68

Renal concomitant disease

1.61

1.01

2.56

0.04

1.32

0.68

2.57

0.42

Pulmonic concomitant disease

0.80

0.49

1.30

0.37

Malignancy concomitant disease

1.63

1.24

2.16

0.001

0.88

0.52

1.48

0.62

PBM yes

0.66

0.50

0.90

0.006

0.89

0.48

1.65

0.71

Hemoglobin prior surgery

0.83

0.74

0.93

0.001

0.98

0.80

1.19

0.80

Hemoglobin post surgery

0.66

0.57

0.76

< 0.001

0.94

0.80

1.12

0.50

Hemoglobin prior surgery normal

0.49

0.32

0.75

0.001

0.48

0.31

0.74

0.001

Hb post surgery normal

1.40

0.70

2.78

0.34

Complications > DC IIIA without V

8.90

6.69

11.85

< 0.001

12.39

7.88

19.48

< 0.001

Total number of RBCs

1.1

1.04

1.06

< 0.001

1.02

0.99

1.04

0.21