Table 1.

Characteristics of the study groups

Healthy controlGastric cancer
(N = 35)(N = 35)P
Age (y), median (IQR)63 (53–67)65 (56–68)0.249a
Sex
 Male26280.569b
 Female97
PS
 035330.493c
 102
Serum Cr (mg/dL), median (IQR)0.80 (0.70–0.90)0.80 (0.70–0.85)0.410a
Tumor size (mm), median (IQR)30 (15–62)
Histologic type, N (%)
 Intestinal27 (77.1)
 Diffuse8 (22.9)
T stage, N (%)
 T1a12 (34.3)
 T1b10 (28.6)
 T22 (5.7)
 T31 (2.9)
 T4a8 (22.9)
 T4b2 (5.7)
Stage, N (%)
 I22 (62.9)
 II4 (11.4)
 III5 (14.3)
 IV4 (11.4)
Resection, N (%)
 Endoscopy18 (51.4)
 Gastrectomy13 (37.1)
 Nonresection4 (11.4)

NOTE: Clinical stage is according to the seventh edition of UICC-TNM classification.

Abbreviation: Cr, creatinine.

  • aThe Mann–Whitney U test.

  • bThe χ2 test.

  • cThe Fisher exact probability test.