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Table 2 Cox univariate analysis for 2-year survival in 79 patients

From: A retrospective study: the prognostic value of anemia, smoking and drinking in esophageal squamous cell carcinoma with primary radiotherapy

  Univariate analysis
  2-year overall survival 2-year disease-free survival
  HR 95% CI P HR 95% CI P
Hemoglobin (non-anemic vs anemic) 1.897 1.086-3.312 0.024 1.776 1.040-3.033 0.036
Smoking (no vs yes) 0.889 0.522-1.514 0.666 0.981 0.593-1.622 0.940
Drinking (no vs yes) 0.941 0.554-1.600 0.824 0.959 0.582-1.579 0.869
TNM stage (I vs II vs III vs IV) 1.652 1.175-2.322 0.004 1.650 1.193-2.281 0.002
Initial treatment (RT vs S + RT vs CRT vs S + CRT) 0.840 0.655-1.077 0.169 0.900 0.718-1.129 0.362
Tumor location (C vs U vs M vs L) 0.937 0.703-1.250 0.660 0.964 0.736-1.263 0.792
  1. C, cervical; CI, confidence interval; CRT, chemoradiotherapy; HR, hazard ratio; L, low; M, middle; RT, radiotherapy; S, surgery; TNM, tumor, lymph node, metastasis; U, upper; vs, versus.