Table 3. Clinical characteristics according to the vigilance of endoscopic interval (3 years).
| Characteristics | < 3 yr (n = 486) | ≥ 3 yr (n = 357) | P value | |
|---|---|---|---|---|
| Sex | 0.872 | |||
| Male | 344 (70.8) | 250 (70.0) | ||
| Female | 142 (29.2) | 107 (30.0) | ||
| Age (mean ± SD), yr | 63.9 ± 11.0 | 64.0 ± 12.2 | 0.925 | |
| Family history of GC | 0.678 | |||
| Yes | 91 (18.7) | 62 (17.4) | ||
| No | 395 (81.3) | 295 (82.6) | ||
| Tumor location | 0.426 | |||
| Upper 1/3 | 75 (15.5) | 64 (18.0) | ||
| Mid 1/3 | 51 (10.5) | 43 (12.1) | ||
| Lower 1/3 | 359 (74.0) | 249 (69.9) | ||
| Tumor size, cm | < 0.001 | |||
| ≤ 2 | 299 (61.5) | 141 (39.5) | ||
| 2–3 | 85 (17.5) | 80 (22.4) | ||
| 3–5 | 79 (16.3) | 71 (19.9) | ||
| > 5 | 23 (4.7) | 65 (18.2) | ||
| Tumor stage | < 0.001 | |||
| Stage I | 413 (85.0) | 226 (63.3) | ||
| Stage II | 29 (6.0) | 23 (6.4) | ||
| Stage III | 30 (6.2) | 60 (16.8) | ||
| Stage IV | 14 (2.9) | 48 (13.4) | ||
| Histology | 0.189 | |||
| Differentiated | 290 (59.7) | 196 (54.9) | ||
| Undifferentiated | 196 (40.3) | 161 (45.1) | ||
| Treatment | < 0.001 | |||
| ESD or EMR | 210 (43.2) | 95 (26.6) | ||
| Surgery | 222 (45.7) | 167 (46.8) | ||
| Palliative CTx | 9 (1.9) | 30 (8.4) | ||
| Transfer or f/u loss | 45 (9.3) | 65 (18.2) | ||
SD = standard deviation, GC = gastric cancer, ESD = endoscopic submucosal dissection, EMR = endoscopic mucosal resection, CTx = chemotherapy, f/u = follow up.