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Table 6 Patient tumor and combined frequency of PD-1 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

4

P-value

  

aCombined PD-1 Level, n (%)

 

Stage of cancer

       

 I-II

9

0 (0.0)

0 (0.0)

6 (66.7)

1 (11.1)

2 (22.2)

0.028

 III-IV

46

7 (15.2)

8 (17.4)

23 (50.0)

7 (15.2)

1 (2.2)

Tumor grade

       

 1–2

13

1 (7.7)

4 (30.8)

7 (53.8)

0 (0.0)

1 (7.7)

0.54

 3

41

6 (14.6)

4 (9.8)

21 (51.2)

8 (19.5)

2 (4.9)

  1. aCombined PD-1 was derived by adding the observed pathology scores for tumor PD-1 (T-PD-1) and S-PD-1 in each patient tumor section. Significant P-value in table is indicated in italics