Pescadillo ribosomal biogenesis factor 1 and programmed death-ligand 1 in gastric and head and neck squamous cell carcinoma

Table 3 Relationship between programmed death-ligand 1 expression and clinical characteristics of gastric cancer and head and neck squamous cell carcinoma

Diagnostic trait	n	PD-L1		χ2	P value
		Negative (n = 24)	Positive (n = 34)
Sex				0.879	0.349
Male	37	17 (45.95)	20 (54.05)
Women	21	7 (33.33)	14 (66.67)
Age (years)				0.367	0.545
< 60	41	18 (43.90)	23 (56.10)
≥ 60	17	6 (35.29)	11 (64.71)
Degree of differentiation				6.508	0.011
Poorly differentiated	32	18 (56.25)	14 (43.75)
Moderately to well differentiated	26	6 (23.08)	20 (76.92)
TNM staging				0.049	0.825
I-II	28	12 (42.86)	16 (57.14)
III	30	12 (40.00)	18 (60.00)
Lymphatic node transfer				5.525	0.019
Yes	39	12 (30.77)	27 (69.23)
No	19	12 (63.16)	7 (36.84)
Infiltration depth				9.269	0.002
T1/T2	25	16 (64.00)	9 (36.00)
T3/T4	33	8 (24.24)	25 (75.76)
Tumor diameter (cm)				0.000	0.984
< 5	41	17 (41.46)	24 (58.54)
≥ 5	17	7 (41.18)	10 (58.82)
Diabetes				1.192	0.275
Yes	15	8 (53.33)	7 (46.67)
No	43	16 (37.21)	27 (62.79)

Data are presented as n (%). PD-L1: Programmed death-ligand 1.