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Table 4 Univariate analysis of prognostic factors for disease free survival in resected pancreatic ductal adenocarcinoma

From: Expression of estrogen receptor beta correlates with adverse prognosis in resected pancreatic adenocarcinoma

Variable   Mean DFS [months] 95% CI Median DFS [months] p value
Total   21.2 17.2 25.1 15.0  
Sex female 20.4 15.2 25.6 12.2 0.485
male 22.0 16.1 27.9 16.3  
Age ≤60 years 22.4 15.0 29.8 16.1 0.704
> 60 years 20.5 15.8 25.2 15.0  
T status T1–2 25.6 13.5 37.7 16.3 0.701
T3–4 20.7 16.4 25.0 15.0  
N status N0 25.1 18.9 31.2 20.0 0.066
N1 18.5 13.6 23.5 13.0  
Tumor grading G1–2 24.4 17.3 31.6 20.1 0.293
G3 19.5 14.8 24.1 14.8  
Residual tumor R0 25.9 19.4 32.5 21.5 0.018
R1 15.1 11.7 18.5 13.3  
ERβ expression negative 23.5 18.7 28.4 16.3 0.037
positive 13.5 9.6 17.4 8.7  
Perioperative CRT/CTX 21.4 16.5 26.3 15.0 0.800
therapy none 20.4 13.5 27.2 16.7  
  1. CI confidence interval, DFS disease free survival, CRT chemoradiotherapy, CTX chemotherapy