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Table 3 Univariate and multivariate linear regression analyses to identify the factors associated with blood loss during partial mastectomy

From: Protective effect of remifentanil on blood loss in endoscopic subcutaneous mastectomy: a retrospective study

 

Univariate

Multivariate

Factor

Coefficient

Standard error

P value

Coefficient

Standard error

P value

Age, years

0.11

0.59

0.86

0.24

0.54

0.65

Operative time

1.11

0.14

< 0.001

1.03

0.14

< 0.001

Ephedrine use

− 9.41

13.34

0.48

7.84

12.53

0.53

Phenylephrine use

− 80.3

89.97

0.37

− 65.08

79.56

0.41

Atropine use

− 27.85

14.05

0.049

2.8

13.63

0.84

Diclofenac suppository use

− 11.55

26.65

0.67

− 15.53

24.01

0.52

Flurbiprofen axetil use

− 2.07

11.84

0.86

3.07

10.96

0.78

Remifentanil use

− 51.57

11.48

< 0.001

− 38.74

12.26

0.002

  

n = 231

  

R2/adj. R2 = 0.269/0.243

  

P <  0.001

  1. R2/adj. R2 determination coefficient/adjusted determination coefficient