TABLE 2.

The basic clinical features were accordant cross‐talk between NSCLC BM+ patients, NSCLC BM− patients, and healthy volunteers.

Parameters	Groups (n = 60/group)		p‐values	Groups (n = 60/group)		p‐values	Groups (n = 60/group)		p‐values
	NSCLC BM+ patients	NSCLC BM− patients		NSCLC BM+ patients	Healthy volunteers		NSCLC BM− patients	Healthy volunteers
Age (years)
≤40	34	32	0.714	34	33	0.854	32	33	0.855
>40	26	28		26	27		28	27
Gender
Male	42	38	0.439	42	40	0.695	38	40	0.702
Female	18	22		18	20		22	20
TNM stage
I	—	5	0.003	—	—	—	5	—	—
II	—	6		—	—		6	—
III	25	27		25	—		27	—
IV	35	22		35	—		22	—
Smoking history
Yes	36	33	0.580	36	30	0.271	33	30	0.583
No	24	27		24	30		27	30
Family history of LC
Yes	24	22	0.672	24	18	0.251	22	18	0.129
No	36	28		36	42		28	42

Abbreviations: NSCLC, non‐small‐cell lung cancer; TNM, tumor‐node‐metastasis.