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Table 2 Risk factors for lymph node metastases by logistic regression

From: Prognostic impact of lymph node parameters in distal cholangiocarcinoma after pancreaticoduodenectomy

Variables RR 95% CI p value
ALB 0.469 0.191~1.148 0.097
DB 0.574 0.171~1.923 0.368
CA19-9 7.064 2.489~20.051 0.000
Differentiation 1.727 0.942~3.165 0.077
Portal vein system invasion 4.610 1.252~16.972 0.013