Table 1 Clinicopathological features of patients and gastric lesions

Age (year, mean ± SD)

71.4 ± 8.8

Gender Man/Woman

344 (74.9%)/115 (25.1%)

Lesion

 Elevated type/Depressed type

256 (55.8%)/203 (44.2%)

 Tumor location U/M/L

75 (16.3%)/179 (39.0%)/205 (44.7%)

 Size of resected specimen (mm, mean ± SD)

40.3 ± 15.3

 Tumor size (mm, mean ± SD)

17.2 ± 11.0

 Histopathology Adenoma/Carcinoma

52 (11.3%)/407 (88.7%)

 Depth of invasion (M/SM1/SM2)

405 (88.2%)/39 (8.5%)/15 (3.3%)

 Ulcerative findings absent/present

426 (92.8%)/33 (7.2%)

 Resectability

 One-piece resection

446 (97.2%)

 Complete resection

403 (87.8%)

Underlying diseases

 Heart disease

72 (15.7%)

 Renal disease

21 (4.6%)

 Hepatic disease

45 (9.8%)

 Pulmonary disease

36 (7.8%)

 Brain disease

45 (9.8%)

 Hypertension

209 (45.5%)

 Diabetes mellitus

75 (16.3%)

 Hyperlipidemia

67 (14.6%)