BMC Cancer

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	30.61^a	57.14	35.84^b	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	36.87^e	42.86	39.89^f	28.57	4.05	(0.90-18.23)^g	3.44	(0.57-20.64)^h

Abbreviations: DFS, disease free survival; OS, overall survival; RH, relative hazard; 95% CI, 95% confidence interval; ref, reference.
^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.

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