Pancreaticoduodenectomy for duodenal papilla carcinoma: A single-centre 9-year retrospective study of 112 patients with long-term follow-up

Table 2 Univariate analysis comparing overall survival to prognostic factors in 112 patients with duodenal papilla carcinoma

Factors	No.	5 years survival	χ²	P value
Gender			0.561	0.454
Male	74	48.6%
Female	38	52.4%
Age (yr)			0.022	0.883
< 60	61	46.3%
> 60	51	48.9%
Duration (yr)			0.409	0.523
< 1	54	41.7%
> 1	58	53.4%
Serum CA19-9 (U/mL)			4.566	0.033
< 120	73	56.2%
> 120	39	38.3%
Serum CEA (ng/mL)			5.554	0.018
< 5	96	54.1%
> 5	16	25.0%
Serum total bilirubin (μmol/L)			5.929	0.015
< 34.2	43	65.1%
> 34.2	69	40.6%
Bile pre-drainage			1.144	0.285
No	78	47.4%
Yes	34	55.9%
Tumour diameter (cm)			0.185	0.667
< 2	76	51.3%
> 2	36	47.2%
Pancreatic duct diameter (mm)			0.493	0.483
< 4	78	51.2%
> 4	34	47.1%
Drainage mode			0.006	0.939
Inside	85	48.2%
Outside	27	55.3%
End-to-end invagination			0.592	0.442
No	90	48.9%
Yes	22	54.5%
Blood loss (mL)			0.052	0.820
< 400	67	49.2%
> 400	45	51.1%
Delayed emptying			0.614	0.433
No	107	50.5%
Yes	5	40.0%
Pancreatic fistula			0.455	0.500
No	91	47.1%
Yes	21	57.1%
Differentiation			3.676	0.159
Well	40	62.4%
Moderate	38	39.5%
Poor	34	47.1%
Infiltration depth			22.424	0.000
T1	14	78.6%
T2	34	67.6%
T3	35	45.7%
T4	29	20.7%
lymph metastases			21.187	0.000
N0	88	60.2%
N1	24	12.5%
TNM stage			35.041	0.000
IA	14	78.6%
IB	27	77.8%
IIA	28	57.1%
IIB	14	14.3%
III	29	20.7%