Long-term survival after resection of pancreatic cancer: A single-center retrospective analysis

Table 2 Univariate analysis of factors prognostic for survival in patients undergoing pancreatic resection for pancreatic cancer

Variables	n	MST (mo)	5-yr survival (%)	P value
Age				0.071
> 65	130	22.1	31.3
≤ 65	65	47.3	40.5
Gender				0.060
Male	108	17.5	31.6
Female	87	23.9	38.6
CEA (ng/mL)				0.082
> 5	42	18.5	33.1
≤ 5	138	35.2	38.4
CA19-9 (U/mL)				0.006b
> 200	80	20.7	22.6
≤ 200	104	47.4	47.2
DUPAN-2 (U/mL)				0.003b
> 180	69	24.2	22.7
≤ 180	101	30.8	51.0
Tumor size				< 0.001b
> 20 mm	156	21.7	25.9
≤ 20 mm	39	29.4	69.9
Surgical margin status				< 0.001b
R0	138	47.3	45.2
R1-2	57	16.0	5.6
Lymph node metastasis				< 0.001b
Positive	145	21.8	26.4
Negative	50	28.8	55.8
Extrapancreatic neural invasion				0.00b
Positive	108	22.0	23.9
Negative	87	47.4	47.9
Portal invasion				0.006b
Positive	63	21.1	15.0
Negative	132	35.4	42.7
UICC Stage				< 0.001b
IA	9	34.9	87.5
IB	1	27.1	0
IIA	38	28.2	51.3
IIB	110	20.2	29.0
III	9	16.3	0
IV	28	10.4	14.4
Adjuvant chemotherapy				0.301
Yes	150	21.1	40.5
No	45	27.1	32.5
Time to initiation of adjuvant chemotherapy				0.985
> 40 d	66	27.1	31.1
≤ 40 d	84	30.8	34.0

^bP < 0.01 vs control. MST: Mean survival time.