Table 2.

Distribution of patients with respect to TNM descriptors, according to the 7th edition of the IASLC TNM classification system

T category	N category	M category	Number of patients
1a	0	0	4
	1		1
	2		10
	3		3
1b	0	0	8
	1		14
	2		16
	3		5
2a	0	0	25
	1		5
	2		59
	3		18
2b	0	0	3
	1		2
	2		13
	3		5
3	0	0	22
	1		3
	2		29
	3		16
4	0	0	23
	1		1
	2		59
	3		42
Any	Any	1a	19
Any	Any	1b	359

Abbreviations: IASLC, International Association for the Study of Lung Cancer; TNM, tumor, node, metastasis.