Table II.

Correlation between SIRT6 expression and clinical features.

Characteristic	SIRT6 expression		Total	rs	P-value
	High	Low
Sex				−0.141	0.168
Female	26	17	43
Male	25	29	54
Age (years)				−0.024	0.822
≤70	25	17	42
>70	22	28	50
Null			5
Grade				−0.113	0.272
I	3	4	7
II	32	21	53
III	16	21	37
T stage				−0.241	0.02a
T1	1	0	1
T2	5	0	5
T3	38	35	73
T4	5	9	14
Null			4
N stage				−0.164	0.113
N0	34	24	58
N1	15	12	27
N2	2	8	10
Null			2
M stage				−0.188	0.065
M0	51	43	94
M1	0	3	3
TNM stage				−0.168	0.104
I	4	1	5
II	30	23	53
III	17	17	34
IV	0	3	3
Null			2

^aP<0.05. SIRT6, sirtuin 6.