Table 1.

Molecular and clinical characteristics of patients.

		Training Group (n = 87)		Test Group (n = 22)
Variable	Categories	Frequencies	%	Frequencies	%
Molecular alterations	None	34	39.1	12	54.5
	At least one	53	60.9	10	45.5
Gender	Female	25	28.7	9	40.9
	Male	62	71.3	13	59.1
Smoking history	No	8	9.2	5	22.7
	Yes	79	90.8	17	77.3
AJCC stage	I or II	17	19.5	2	9.1
	III	28	32.2	9	40.9
	IV	42	48.3	11	50.0