Table 2. Clinical information of pancreatic cancer patients.

Characteristic	No. of patients (N = 60)	Percentage (%)
Sex
Men	37	61.7
Women	23	38.3
Age
Mean ± SD, year	62.9 ± 12
Tumor size
≤ 3 cm	23	38.3
> 3 cm	37	61.7
Pathological grade
Well, moderate	53	88.3
Poor	7	11.7
Depth of invasion
T1, T2	9	15
T3, T4	51	85
Lymph nodemetastasis
Negative	28	46.7
Positive	32	53.3
Stage
I, II	57	95
III, IV	3	5