Table 1 Patient characteristics

Age (years)

71 (61.8–77.0) [26–87]

Sex (male/female)

66 (64.7)/36 (35.3)

Location

 Upper third

26 (24.5)

 Middle third

59 (55.7)

 Lower third

17 (16.0)

 Gastric tube^a

4 (3.8)

Macroscopic type

 Elevated

15 (14.2)

 Flat

5 (4.7)

 Depressed

83 (78.3)

 Complex

3 (2.8)

Tumor diameter (mm)

14 (9.0–20.3) (1.5–57.0)

Depth

 Intramucosal

90 (84.9)

 Submucosal

  < 500 μm

12 (11.3)

  ≥ 500 μm

4 (3.8)

Ulcerative findings

 Present

5 (4.7)

 Absent

101 (95.3)

Histological type

 Differentiated

82 (77.4)

 Undifferentiated

24 (22.6)

History of Helicobacter pylori infection

 Infected

97 (91.5)

  Noneradicated

23 (21.7)

  Eradiated

74 (76.3)

 Uninfected

9 (8.5)

Endoscopic findings in adjacent noncancerous tissue

 Atrophy

94 (88.7)

 Intestinal metaplasia

52 (49.1)

 Erosion

10 (9.4)

 None of the above

12 (11.3)