Table 1. Clinicopathologic characteristics of patients with and without metachronous lesion.
| Parameters | Patients with ML (n = 24) | Patients without ML (n = 161) | P value |
|---|---|---|---|
| Mean age, yr | 71.25 ± 8.06 | 66.82 ± 10.09 | |
| < 70 | 9 (37.5) | 95 (59.0) | 0.048 |
| ≥ 70 | 15 (62.5) | 66 (41.0) | |
| Sex (male) | 19 (79.2) | 122 (75.8) | 0.716 |
| Location | 0.374 | ||
| Upper 1/3 | 0 (0.0) | 10 (6.2) | |
| Middle 1/3 | 9 (37.5) | 43 (26.7) | |
| Lower 1/3 | 15 (62.5) | 108 (67.1) | |
| Gross appearance | 0.731 | ||
| Elevated | 2 (8.3) | 18 (11.2) | |
| Flat | 7 (29.2) | 59 (36.6) | |
| Depressed | 15 (62.5) | 84 (52.2) | |
| Maximum diameter of lesion, mm | 14.08 ± 7.96 | 14.74 ± 8.61 | 0.248 |
| Multiplicity | 1 (4.2) | 5 (3.1) | 0.571 |
| Depth of invasion | 0.476 | ||
| M | 23 (95.8) | 143 (88.8) | |
| SM | 1 (4.2) | 18 (11.2) | |
| H.P. status | 0.003 | ||
| Eradicated | 17 (70.8) | 150 (93.2) | |
| Persistent | 7 (29.2) | 11 (6.8) | |
| Smoking | 4 (16.7) | 53 (32.9) | 0.108 |
| Alcohol | 11 (45.8) | 73 (45.3) | 0.964 |
Values are presented as mean ± SD or number (%).
ML = metachronous lesion, M = mucosa, SM = submucosa, H.P. = Helicobacter pylori.