Prognostic significance of SUVmax and serum carbohydrate antigen 19-9 in pancreatic cancer

Table 2 Univariate analysis of prognostic factors for overall survival

Variable	n	P value
Sex
Male	48	0.119
Female	32
Age (yr)
≤ 60	37	0.993
> 60	43
Pancreatic location (n)
Head	62	0.378
Body or tail	18
Stage
I/II	55	< 0.001
III/IV	25
Pathological differentiation
Well	28	0.697
Moderate	18
Poor	34
Tumor size
> 2cm	56	0.339
≤ 2cm	24
Lymph node metastasis
Yes	34	0.043
No	25
Distant metastasis
Yes	8	< 0.001
No	72
Surgical resection
Yes	59	< 0.001
No	21
SUVmax
High	40	< 0.001
Low	40
CA19-9
High	40	0.001
Low	40
SUVmax plus CA19-9
Both are high	29	0.002
Others	51

SUVmax: Standardized maximum uptake value; CA19-9: Carbohydrate antigen 19-9.