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Table 3 Oncological data

From: Vascular resection for locally advanced pancreatic ductal adenocarcinoma: analysis of long-term outcomes from a single-centre series

  Overall (n=173) VR− group (n=132) VR+ group (n=41) P-value
Tumour size (cm), mean 3.1±1.2 2.8±1.0 3.5±1.2 0.005
Lymphovascular invasion (%) 36 (20.8) 24 (18.2) 12 (29.3) 0.127
Perineural invasion (%) 82 (47.4) 57 (43.2) 25 (61) 0.046
Lymph node ratio, mean 0.14±0.18 0.14±0.19 0.15±0.14 0.795
Positive resection margins (%) 13 (7.5) 9 (6.8) 4 (9.8) 0.533
Pathological vessel infiltration (%) 32 (18.5) 32 (78)  
Survival
 Overall (months), median 17.7
(0.1–148.6)
18.4
(0.1–148.6)
15.4
(0.9–101.7)
0.717
 1 year (%) 106 (61.3) 81 (61.4) 25 (61) 0.964
 3 years (%) 36 (20.8) 29 (22) 7 (17.1) 0.500
 5 years (%) 23 (13.3) 19 (14.4) 4 (9.8) 0.445