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Table 7 Patient tumor characteristics and frequency of PD-L1 expression

From: Stratification of ovarian tumor pathology by expression of programmed cell death-1 (PD-1) and PD-ligand- 1 (PD-L1) in ovarian cancer

 

No. Patients

0

1

2

3

P-value

  

PD-L1 Level, n (%)

 

Stage of cancer

      

 I-II

9

4 (44.4)

3 (33.3)

1 (11.1)

1 (11.1)

0.033

 III-IV

46

33 (71.7)

11 (23.9)

2 (4.3)

0 (0.0)

Tumor grade

      

 1–2

13

12 (92.3)

1 (7.7)

0 (0.0)

0 (0.0)

0.033

 3

41

24 (58.5)

13 (31.7)

3 (7.3)

1 (2.4)

  1. Significant P- values in table are indicated in italics