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Table 5 Prognostic factors. Cox's proportional hazards regression model was used for univariate survival analysis.

From: Results of radiation therapy combined with nedaplatin (cis-diammine-glycoplatinum) and 5-Fluorouracil for postoperative locoregional recurrent esophageal cancer

factor group No. median survival time log-rank univariate
    (month) p p
performance status 0–1 25 39 0.018 0.033
  2–3 5 8   
age ≥65 12 39 0.017 0.034
  <65 18 10   
preoperative stage (UICC§ 1997) I – II 9   0.87 0.87
  III – IV 19 39   
number of cycles of chemotherapy 1 5 9 0.50 0.501
  2 25 39   
time interval between surgery and recurrence >13 14   0.083 0.212
  ≤13 16 14   
tumor response (RECIST*) CR-PR 22 39 0.27 0.277
  SD-PD 8 12   
field local 19 39 0.17 0.183
  T-shaped 11 14   
relapse again inside irradiated field + 5   0.57 0.594
  - 25 39   
number of recurrent regions one 23 39 0.19 0.206
  multiple 7 6.5   
recurrent pattern local 9 6.0 0.015 0.024
  non-local 21 39.0   
  1. *RECIST: Response Evaluation Criteria in Solid Tumors, §UICC: Union International Contre le Cancer
  2. Three blank columns show that the median survival times could not be calculated.
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