Elevated Expression of Programmed Death-1 and Programmed Death Ligand-1 Negatively Regulates Immune Response against Cervical Cancer Cells

Table 1

Clinical characteristics of patients with cervical cancer.

Characteristics	Categories	Number (percentage, %) of patients ()
Age (years)	<45	60 (76)
	>45	18 (24)
FIGO stage	I	31 (39)
	II	34 (43)
	III	8 (10)
	IV	5 (6)
Histological types	SCC	66 (85)
	ADC/ADSC	12 (15)
Tumor differentiation	Well	11 (14)
	Moderate	28 (36)
	Poor	39 (50)
Lymph node metastases	Positive	26 (33)
	Negative	52 (67)
Tumor size (cm)	<4	43 (55)
	≥4	35 (45)
Tumor invasion depth (mm)	<15	41 (53)
	≥15	37 (47)
Tumor metastasis	Yes	28 (36)
	No	47 (60)
	Unknown	3 (4)