Characteristics		Number	Percentage (%)
Total	208	208
Age group	< 60	128	61.5
Age group	≥ 60	80	38.5
Gender	Males	158	76
Gender	Females	50	24
Smoking	Yes	92	55.8
Smoking	No	116	44.2
PS	1	144	69.2
	2	59	28.4
	3	5	2.4
Pathology	SQ	99	47.6
Pathology	TCC	109	52.4
Grade	1	10	4.8
	2	126	60.6
	3	72	34.6
SM	Positive	15	7.2
SM	Negative	193	92.8
LN dissection	<10	71	34.1
LN dissection	≥10	137	65.9
LN	Negative	153	74
LN	Positive	55	26
T-stage	2b	54	26
	3a	16	7.7
	3b	117	56.3
	4a	21	10.1
N-stage	N0	153	73.6
	N1	21	10.1
	N2	34	16.4
Stage	2	46	22.1
	3	106	51
	4	56	26.9