Table 1. Characteristics of enrolled patients with gastric adenocarcinoma.

Group	N	Sex (♂: ♀)	Age (years)†	Blood CEA (ng/mL) †
Total	45	25:20	68.47 ± 1.61 [44–90]	4.10 ± 0.71 [0.6–21.5]
Stage
I	10	6:4	71.4 ± 2.78 [59–80]	3.66 ± 1.37 [1.21–2.84]
II	10	8:2	69.75 ± 4.47 [44–84]	4.85 ± 2.11 [0.60–21.50]
III	20	15:5	66.83 ± 2.26 [49–90]	3.59 ± 0.73 [0.64–10.05]
IV	5	5:0	70.4 ± 4.57 [62–87]	8.95 ± 2.92 [2.07–15.00]

^†, Mean ± S.E.M. [Range]

CEA, carcinoembryonic antigen; N, sample size.