Prognostic value of 18-fluorodeoxyglucose positron emission tomography-computed tomography in resectable colorectal cancer

Table 3 Two-year disease-free survival according to the Kaplan-Meier method

Variable	No. of patients	Two-year DFS (%)	Log-rank P
Age (yr)			0.29
≥ 60	81	90.1
< 60	82	85.4
Sex			0.08
Male	98	83.7
Female	65	93.8
TNM stage			< 0.01
I	23	100
II	67	98.5
III	64	78.1
IV	9	44.4
SUVmax			0.53
≥ 8.6	83	86.7
< 8.6	80	88.8
CEA (ng/mL)			< 0.01
> 5	36	72.2
≤ 5	123	93.5

DFS: Disease-free survival; TNM: Tumor node metastasis; SUVmax: Maximum standardized uptake value; CEA: Carcinoembryonic antigen.