Table 1.

Clinicopathological Features Associated with PD-L1 Expression in 95 HSCC Patients

Clinicopathological Features	Total	PD-L1 Expression		P value
		Negative	Positive
Gender				0.610
Male	90	50	40
Female	5	3	2
Age (years)				0.263
<60	58	35	23
>60	37	18	19
Differentiation				0.949
High-moderate	63	35	28
Poor	32	18	14
T stage				0.670
T1–T2	20	12	8
T3–T4	75	41	34
N stage				<0.001
N0	22	20	2
N+	73	33	40
Clinical stage				<0.001
I–II	9	9	0
III–IV	86	44	42
Distant metastasis				<0.001
No	66	47	19
Yes	29	6	23

Abbreviations: PD-L1, programmed death-ligand 1; HSCC, hypopharyngeal squamous cell carcinoma.