Table 4.

Expression of PD-L1 according to clinical data

Clinicopathologic Data	NSCLC
	Ki-67 Expression		P-Value	PDL-1 Expression		P-Value
	≤25%	>25%		<50%	≥50%
Age			0.671			0.315
≤60	15	57		43	29
>60	33	108		74	67
Sex			0.001			<0.001
Male	23	123		68	79
Female	25	42		49	18
Lymph node			0.179			0.182
N0	30	85		49	49
N1-N3	18	80		68	47
Tumor size			<0.001			0.002
T1	36	63		68	31
T2	9	54		27	36
T3	3	31		30	18
T4	0	17		6	11
Stage			0.001			<0.001
I	26	45		51	20
II-IV	22	120		66	76
Histology type			<0.001			0.002
AC	43	88		24	36
SCC	4	56		84	46
Other and Unclassified carcinomas	1	21		9	14
Smoking status			<0.001			0.002
Yes	10	87		42	55
No	38	78		75	41
Drinking status			0.173			0.079
Yes	5	37		18	24
No	43	128		99	72
Hypertension			0.929			0.359
Yes	9	30		24	15
No	39	135		93	81
Diabetes			1.000			0.135
Yes	3	12		5	9
No	45	153		112	87
Ki-67						<0.001
high				76	90
low				41	6
PDL-1			<0.001
high	10	89
low	38	76

NSCLC, Non-small cell lung cancer; SCC, squamous cell carcinoma.