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Table 4 Cox proportional hazards analysis for overall survival

From: LDP vs ODP for pancreatic adenocarcinoma: a case matched study from a single-institution

Viables Hazard ration 95 % CI P value
Adjuvant treatment (no/yes) 0.407 0.207–1.020 0.056
R 1 (negative/positive)   1.260–15.468 0.020
Extended resection (no/yes)   1.105–5.945 0.028
Operation (LDP/ODP)   0.420–1.863 0.885
N1 (negative/positive)   0.745–4.147 0.198
Perineural invasion (negative/positive)   1.240–6.746 0.014
Tumor stage T2 1.000   
Tumor stage T3 0.776 0.292–2.060 0.611
Tumor stage T4 1.174 0.433–3.180 0.753
Tumor differentitation Well 1.000   
Tumor differentitation Moderate 3.432 1.012–11.645 0.048
Tumor differentitation Poor 6.316 0.980–40.700 0.053
  1. HR hazard ratio
  2. 95 % CI, 95 % confidence interval