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Table 7 Results of multivariate analysis of survival after salvage chemoradiotherapy

From: Salvage chemoradiotherapy after primary chemotherapy for locally advanced pancreatic cancer: a single-institution retrospective analysis

    Variables Factors Hazard rate (95% CI) p-value
Pre-chemoradiotherapy serum CA19-9 level (U/ml) ≤ 1000 versus > 1000 1 0.009
   4.38 (1.45-13.22)  
Number of regimens of primary chemotherapy 1 versus 2 1 0.004
   6.28 (1.78-22.18)  
Local progression before chemoradiotherapy absent versus present 1 0.6
   1.58 (0.34-7.18)  
Pre-chemoradiotherapy tumor diameter (cm) ≤ 4.0 versus > 4.0 1 0.9
   1.11 (0.35-3.46)