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Table 2 Primary tumor response for patients in CCRT group vs. chemotherapy alone group

From: Outcomes of concurrent chemoradiotherapy versus chemotherapy alone for stage IV esophageal squamous cell carcinoma: a retrospective controlled study

Primary tumor response CCRT group (n = 55) Chemotherapy group (n = 86) P
CR 7 (12.7%) 2 (2.3%)  
PR 34 (61.8%) 37 (43.0%)  
SD 11 (20.0%) 30 (34.9%)  
PD 3 (5.5%) 17 (19.8%)  
ORR (CR + PR) 41 (74.5%) 39 (45.3%) 0.001
DCR (CR + PR + SD) 52 (94.5%) 69 (80.2%) 0.024
  1. Abbreviations: CCRT concurrent chemoradiotherapy, CR complete response, PR partial response, SD stable disease, PD progressive disease, ORR objective response rate, DCR disease control rate