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Table 3 Univariate analysis of prognostic factors for overall survival in resected pancreatic ductal adenocarcinoma

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

Variable   Mean OS [months] 95% CI Median OS [months] p value
Total   27.0 22.3 31.6 21.4  
Sex female 23.1 17.7 28.5 16.3 0.122
male 30.2 22.5 37.9 34.2  
Age ≤60 years 29.4 21.6 37.1 21.4 0.398
> 60 years 25.4 20.1 30.8 20.2  
T status T1–2 26.2 15.2 37.2 17.0 0.969
T3–4 26.8 21.8 31.9 22.2  
N status N0 33.1 26.1 40.2 34.2 0.021
N1 21.5 16.1 26.8 16.3  
Tumor grading G1–2 28.1 21.3 34.9 36.8 0.228
G3 25.3 19.6 31.0 16.7  
Residual tumor R0 31.4 24.0 38.8 34.2 0.052
R1 19.8 15.7 23.9 16.7  
ERβ expression negative 30.9 25.2 36.7 34.2 0.009
positive 16.6 12.7 20.4 12.2  
Perioperative CRT/CTX 25.5 18.5   32.5 17.4 0.800
therapy none 27.2 21.5   32.9 21.4  
  1. CI confidence interval, OS overall survival, CRT chemoradiotherapy, CTX chemotherapy