Journal of Ovarian Research

Table 4 Patient history and presence of PD-1 and PD-L1

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

		combined PD-1^a		PD-L1
	No. Patients	n (%)	p-value	n (%)	P-value
Age at diagnosis
< 60	27	24 (88.9)	0.99	9 (33.3)	0.93
≥ 60	28	24 (85.7)	0.99	9 (32.1)	0.93
Stage of cancer
I-II	9	9 (100.0)	0.58	5 (55.6)	0.13
III-IV	46	39 (84.8)	0.58	13 (28.3)	0.13
Tumor grade
1–2	13	12 (92.3)	0.99	1 (7.7)	0.040
3	41	35 (85.4)	0.99	17 (41.5)	0.040

^aThe presence of PD-1 in the tumor epithelial or stromal compartment (combined PD-1), and PD-L1 was defined as the occurrence of these molecules (scores 1, 2, 3, or 4) in tissue sections. Tumor grade was unknown for one patient. Significant P-values are indicated in italics

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ISSN: 1757-2215

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