Table 4 Three separate multivariable Cox proportional hazard models analyzing risk factors for overall survival.

From: Maximum standardized uptake value on 18F-fluorodeoxyglucose positron emission tomography/computed tomography improves outcome prediction in retroperitoneal liposarcoma

 

Overall survival

Univariable

Multivariable

Model 1

Model 2

Model 3

Variables

No

HR

95% CI

P

HR

95% CI

P

HR

95% CI

P

HR

95% CI

P

Male (vs. female)

73

3.327

1.103–10.034

0.033

3.177

1.051–9.605

0.041

  

NS

  

NS

SUVmax >4.5

48

5.642

2.124–14.987

0.001

5.441

2.055–14.411

0.001

5.052

1.854–13.766

0.002

 

Not included

 

Nephrectomy

77

0.288

0.109–0.760

0.012

 

Not included

   

NS

  

NS

Gross incomplete resection

42

7.537

2.698–21.057

<0.001

 

Not included

 

6.347

2.238–18.001

0.001

6.415

2.023–20.346

0.002

FNCLCC G1/G2

102

  

0.002

 

Not included

 

—

—

—

  

0.029

G3

29

4.611

1.758–12.096

      

3.023

1.119–8.167

 
  1. *Model 1 is modeled based on preoperative variables while model 2 and 3 added operative variables and tumor histopathology to model 1, respectively. Age >60 (P = 0.738), remnant or recurrent (P = 0.114), suspected invasion (P = 0.078), multiplicity (P = 0.540), size >20 cm (P = 0.717), perinephric location (P = 0.258), resection of three or more organs (P = 0.073), and differentiation (P = 0.377) were excluded from the multivariable adjusted modeling due to insignificant relationship in the univariable analysis.
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