Table 2. Clinical characteristics according to the vigilance of endoscopic interval (2 years).
| Characteristics | < 2 yr (n = 238) | ≥ 2 yr (n = 605) | P value | |
|---|---|---|---|---|
| Sex | 0.591 | |||
| Male | 164 (68.6) | 430 (71.1) | ||
| Female | 74 (31.1) | 175 (28.9) | ||
| Age (mean ± SD), yr | 63.5 ± 11.6 | 64.1 ± 11.5 | 0.503 | |
| Family history of GC | 0.593 | |||
| Yes | 40 (16.8) | 113 (18.7) | ||
| No | 198 (83.2) | 492 (81.3) | ||
| Tumor location | 0.596 | |||
| Upper 1/3 | 36 (15.1) | 103 (17.1) | ||
| Mid 1/3 | 24 (10.1) | 70 (11.6) | ||
| Lower 1/3 | 178 (74.8) | 430 (71.3) | ||
| Tumor size, cm | < 0.001 | |||
| ≤ 2 | 152 (63.9) | 288 (47.6) | ||
| 2–3 | 41 (17.2) | 124 (20.5) | ||
| 3–5 | 35 (14.7) | 115 (19.0) | ||
| > 5 | 10 (4.2) | 78 (12.9) | ||
| Tumor stage | < 0.001 | |||
| Stage I | 208 (87.4) | 431 (71.2) | ||
| Stage II | 11 (4.6) | 41 (6.8) | ||
| Stage III | 13 (5.5) | 77 (12.7) | ||
| Stage IV | 6 (2.5) | 56 (9.3) | ||
| Histology | 0.199 | |||
| Differentiated | 146 (61.3) | 340 (56.2) | ||
| Undifferentiated | 92 (38.7) | 265 (43.8) | ||
| Treatment | < 0.001 | |||
| ESD or EMR | 109 (45.8) | 196 (32.4) | ||
| Surgery | 106 (44.5) | 283 (46.8) | ||
| Palliative CTx | 3 (1.3) | 36 (6.0) | ||
| Transfer or f/u loss | 20 (8.4) | 90 (14.9) | ||
SD = standard deviation, GC = gastric cancer, ESD = endoscopic submucosal dissection, EMR = endoscopic mucosal resection, CTx = chemotherapy, f/u = follow up.