Skip to main content

Table 3 Cox regression* results of PFS and OS 2

From: The maximum standardized uptake value of 18 F-FDG PET scan to determine prognosis of hormone-receptor positive metastatic breast cancer

Cox regression results of PFS

Independent prognostic factors

Hazard ratio (HR)

95% CI

P value

Relapse-free interval

   

 ≤ 2 years

Ref

  

 > 2 years

0.51

0.34-0.76

0.001

No. of metastatic sites

   

 1

Ref

  

 2

1.00

0.59-1.68

0.993

 ≥ 3

1.90

1.18-3.08

0.008

Baseline SUVmax

   

 Lowest tertile

Ref

  

 Intermediate tertile

1.60

0.97-2.66

0.067

 Highest tertile

2.06

1.23-3.45

0.006

Cox regression results of OS 2

 Independent prognostic factors

Hazard ratio (HR)

95% CI

P value

Relapse-free interval

   

 ≤ 2 years

Ref

  

 > 2 years

0.44

0.25-0.78

0.005

Baseline SUVmax

   

 Lowest tertile

Ref

  

 Intermediate tertile

2.44

1.12-5.32

0.025

 Highest tertile

3.54

1.66-7.55

0.001

  1. * The procedure was carried out with the method of “Forward: LR”.
  2. PFS: progression-free survival; OS: overall survival; CI: confidence interval; No.: number; SUVmax: the maximum standardized uptake value; Ref: reference category.