Table 4 Univariate analysis of DFS and known prognostic factors in stage II-III colon carcinoma patients.

From: Clinical significance of programmed death 1 ligand-1 (CD274/PD-L1) and intra-tumoral CD8+ T-cell infiltration in stage II–III colorectal cancer

Parameters

No. at riska

Events

HR

95% CI

p value

Sex

    

0.53

  Female

401

133

1.00

  

  Male

466

166

1.08

0.86–1.35

 

Age

    

<0.0001*

  <65

387

103

1.00

  

  ≥65

480

195

1.67

1.32–2.12

 

pT stage

    

0.03

  T1-2

32

5

1.00

  

  T3-4

833

293

2.65

1.10–6.42

 

pN stage

    

<0.0001*

  Negative

457

125

1.00

  

  Positive

410

173

1.75

1.39–2.20

 

Tumor location

    

0.09

  Proximal colon

425

157

1.00

  

  Distal colon

442

141

0.82

0.66–1.03

 

CD8+ TILs

    

<0.0001*

  High

283

60

1.00

  

  Low

584

238

2.16

1.63–2.86

 

Tumor CD274(PD-L1)

    

0.0007*

  High

384

108

1.00

  

  Low

480

190

1.51

1.19–1.91

 

CD8+ TILs/Tumor CD274 (PD-L1)

    

<0.0001*

  High or high

507

137

1.00

  

  Low/Low

360

161

1.88

1.49–2.36

 
  1. aNumber of cases may differ due to missing data. *p < 0.005 is significant and 0.005 < p < 0.05 is suggestive evidence.