Table 2.

Correlation between C9 expression in TAMs and clinicopathological characteristics of NSCLC patients (n = 104)

Characteristics	Number	C9 expression		Chi-squared test P value
		Low (n = 69)	High (n = 35)
Gender				1.000
Male	90	60	30
Female	14	9	5
Age (years)				0.651
≤65	73	47	26
>65	31	22	9
Smoking history				0.645
Smokers	77	50	27
Never smokers	27	19	8
Histological subtype				0.460
SCC	81	52	29
ACC	23	17	6
Adjacent organs invasion				0.813
Negative	27	17	10
Positive	77	52	25
Tumor size (cm)				0.655
≤5	72	49	23
>5	32	20	12
Lymph node metastasis				0.024*
Negative	49	27	22
Positive	55	42	13
Necrosis				0.025*
Negative	74	54	20
Positive	30	15	15
TNM stage				0.294
I+II	64	40	24
III+IV	40	29	11

AMs tumor-associated macrophages, SCC squamous cell carcinoma, ACC adenocarcinoma

*P < 0.05, overall