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Table 3 Univariate and multivariate Cox regression analyses for overall survival in all types of EOCs

From: PD-L1 expression on stromal tumor-infiltrating lymphocytes is a favorable prognostic factor in ovarian serous carcinoma

 

Univariate

Multivariate

HR (95% CI for HR)

p-value

HR (95% CI for HR)

p-value

Stromal PD-L1

 Low expression

1 [reference]

 

1 [reference]

 

 High expression

0.484 (0.259–0.903)

0.023

0.291 (0.13–0.649)

0.003

Residual tumor

 Optimal

1 [reference]

 

1 [reference]

 

 Suboptimal

2.287 (1.206–4.337)

0.011

1.976 (1.016–3.845)

0.045

Tumor grade

 Grade 1

1 [reference]

 

1 [reference]

 

 Grade 2

3.83 (1.967–7.455)

<  0.001

2.026 (0.881–4.66)

0.096

 Grade 3

3.428 (1.685–6.972)

0.001

2.469 (1.026–5.941)

0.044

Tumor stage

 Early stage

1 [reference]

 

1 [reference]

 

 Advanced stage

5.993 (3.079–11.67)

<  0.001

4.684 (2.318–9.466)

<  0.001