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Table 2 Multivariate analysis of overall survival by the stepwise method

From: Definitive salvage radiation therapy and chemoradiation therapy for lymph node oligo-recurrence of esophageal cancer: a Japanese multi-institutional study of 237 patients

Factors HR Lower Upper p value
   95% CI 95% CI  
CTX
 Without/with 0.40 0.27 0.84 0.000018
DFI     
 ≤/> 12 months 0.60 0.43 0.84 0.0027
LN max diameter
 >/≤ 22 mm 0.65 0.43 0.84 0.012
  1. Abbreviation: HR hazard ratio, CI confidence interval, CTX chemotherapy, DFI disease-free interval, LN lymph node