TABLE 1.

Clinic pathological data of patients with NSCLC in this study.

Characteristic		Number
Age	<60	720
	≥60	221
Pathologic_M	M0	698
	M1	30
	MX	208
	NA	5
Pathologic_N	N0	600
	N1	213
	N2	106
	N3	7
	NX	14
	NA	1
Pathologic_T	T1	262
	T2	529
	T3	108
	T4	39
	TX	3
Clinical stage	Ⅰ	476
	Ⅱ	264
	Ⅲ	159
	Ⅳ	31
	NA	11
Follow up status	Alive	570
	Dead	371