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Table 4 DFS and OS rates stratified by tumour markers and univariate Cox analysis at stage II

From: Preoperative serum CA 72.4 as prognostic factor of recurrence and death, especially at TNM stage II, for colorectal cancer

    D.F.S. O.S Univariate Cox analysis
Tumour marker Levels n Mean (Months) Recurrence% Mean (Months) Death% Recurrence
RH 95% CI
Death
RH 95% CI
CA 72.4 ≤ 7 33 59.89 9.09 61.40 6.06 1.00 (ref) 1.00 (ref)
U/mL > 7 7 30.61a 57.14 35.84b 42.86 9.39 (2.05-43.05)c 8.40 (1.40-50.43)d
CEA ≤ 10 33 58.21 12.12 60.05 9.09 1.00 (ref) 1.00 (ref)
ng/mL > 10 7 36.87e 42.86 39.89f 28.57 4.05 (0.90-18.23)g 3.44 (0.57-20.64)h
  1. Abbreviations: DFS, disease free survival; OS, overall survival; RH, relative hazard; 95% CI, 95% confidence interval; ref, reference.
  2. a P <0.0001, b P = 0.005, c P = 0.004, d P = 0.02, e P = 0.05, f P = 0.15, g P = 0.07, h P = 0.17.