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Table 4 Univariate analysis of factors affecting overall survival

From: Intensity modulated radiotherapy for locally advanced and metastatic pancreatic cancer: a mono-institutional retrospective analysis

Variable Category Univariate analysis
n Median survival (months) p value *
Gender Male 43 9.1 0.109
  Female 20 14.3  
Age (years) <65 36 9.1 0.623
  ≥65 27 12.1  
Tumor location Head 23 9.1 0.021
  Body/tail 40 12.9  
Tumor size (cm) <4.5 22 12.1 0.232
  ≥4.5 29 8.3  
  Missing 12   
Stage Locally advanced 31 15.7 0.029
  Metastatic 32 8.0  
CA19-9 at diagnosis (U/mL) ≥1000 25 6.6 0.003
  <1000 33 14.3  
  Missing 5   
CEA at diagnosis (ng/mL) >10 13 5.3 0.005
  ≤10 41 9.3  
  Missing 9   
Systemic chemotherapy Yes 26 18.5 0.001
  No 37 8.3  
Concurrent chemotherapy Yes 27 16.0 0.002
  No 36 7.4  
RIAC Yes 39 9.3 0.507
  No 24 10.4  
  1. *Log-rank test, two-tailed.
  2. CA19-9 carbohydrate antigen 19–9, CEA carcinoembryonic antigen, RIAC regional intra-arterial chemotherapy.