Table I.

Association between SIRT6 expression and the clinicopathological features of 68 patients with pancreatic cancer.

		Expression level of SIRT6
Clinicopathological characteristics	All cases	High (n=34)	Low (n=34)	P-value
Sex				0.467
Male	35	19	16
Female	33	15	18
Age, years				0.806
<60	29	14	15
≥60	39	20	19
Tumor size, cm				0.086
<2	29	18	11
≥2	39	16	23
Distant metastasis				0.002a
Positive	33	10	23
Negative	35	24	11
Histological grade				0.029b
High/moderate		13	22
Low		21	12
TNM stage				0.027b
I/II		19	10
III/IV		15	24

^aP<0.01 and

^bP<0.05 vs. high SIRT6 expression group. SIRT6, sirtuin 6.