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Table 4 Multivariate Cox regression analyses for OS

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

Factor P HR (95% CI)
Treatment modality (CCRT vs chemotherapy) 0.013 0.631 (0.438–0.907)
Number of metastases organs (Solitary vs Multiple metastasis) 0.037 0.668 (0.457–0.976)
T-Stage (T1 + 2 vs T3 + 4) 0.113 0.679 (0.421–1.096)
Chemotherapy regimens (PTX + DDP vs 5-Fu + DDP) 0.089 0.732 (0.511–1.049)
  1. Abbreviations: CCRT concurrent chemoradiotherapy, HR hazard ratio, CI confidence interval, OS overall survival