Table 1.
Baseline Characteristics
| Variable | Negative group | Eradicated group | Persistent group | p-value |
|---|---|---|---|---|
| Total | 157 | 212 | 196 | |
| Age, yr | 62.9±8.1 | 61.1±8.1 | 61±9 | 0.068 |
| Sex | 0.081 | |||
| Male | 131 (83.4) | 165 (77.8) | 144 (73.5) | |
| Female | 26 (16.6) | 47 (22.2) | 52 (26.5) | |
| Location of tumor | 0.380 | |||
| Upper third | 4 (2.5) | 9 (4.2) | 10 (5.1) | |
| Middle third | 45 (28.7) | 70 (33) | 50 (25.5) | |
| Lower third | 108 (68.8) | 133 (62.7) | 136 (69.4) | |
| Size of tumor, mm | 18.3±11.4 | 18.3±12.5 | 17.9±11.9 | 0.932 |
| Depth of invasion of tumor | 0.481 | |||
| Lamina propria | 77 (49) | 97 (45.8) | 94 (48) | |
| Muscularis mucosa | 66 (42) | 90 (42.5) | 89 (45.4) | |
| Submucosa | 14 (8.9) | 25 (11.8) | 13 (6.6) | |
| Histology of tumor | 0.782 | |||
| Well differentiated | 90 (57.3) | 127 (59.9) | 121 (61.7) | |
| Moderately differentiated | 62 (39.5) | 80 (37.7) | 69 (35.2) | |
| Poorly differentiated | 5 (3.2) | 4 (1.9) | 4 (2.0) | |
| Poorly cohesive | 0 | 1 (0.5) | 2 (1.0) | |
| Lauren’s classification of tumor | 0.712 | |||
| Intestinal | 152 (96.8) | 209 (98.6) | 189 (96.4) | |
| Diffuse | 3 (1.9) | 2 (0.9) | 4 (2.0) | |
| Mixed | 2 (1.3) | 1 (0.5) | 3 (1.5) | |
| Antral mucosal atrophy | 0.671 | |||
| None | 38 (24.2) | 43 (20.3) | 34 (17.3) | |
| Mild | 32 (20.4) | 39 (18.4) | 39 (19.9) | |
| Moderate | 24 (15.3) | 38 (17.9) | 40 (20.4) | |
| Marked | 7 (4.5) | 9 (4.2) | 12 (6.1) | |
| Non-applicable | 56 (35.7) | 83 (39.2) | 71 (36.2) | |
| Corpus mucosal atrophy | 0.020 | |||
| None | 61 (38.9) | 52 (24.5) | 53 (27.0) | |
| Mild | 22 (14.0) | 41 (19.3) | 30 (15.3) | |
| Moderate | 17 (10.8) | 39 (18.4) | 35 (17.9) | |
| Marked | 11 (7.0) | 11 (5.2) | 19 (9.7) | |
| Non-applicable | 46 (29.3) | 69 (32.5) | 59 (30.1) | |
| Antral intestinal metaplasia | 0.084 | |||
| None | 25 (15.9) | 32 (15.1) | 34 (17.3) | |
| Mild | 45 (28.7) | 47 (22.2) | 52 (26.5) | |
| Moderate | 62 (39.5) | 89 (42.0) | 59 (30.1) | |
| Marked | 20 (12.7) | 38 (17.9) | 45 (23.0) | |
| Non-applicable | 5 (3.2) | 6 (2.8) | 6 (3.1) | |
| Corpus intestinal metaplasia | 0.429 | |||
| None | 56 (35.7) | 66 (31.1) | 62 (31.6) | |
| Mild | 33 (21.0) | 38 (17.9) | 34 (17.3) | |
| Moderate | 28 (17.8) | 61 (28.8) | 52 (26.5) | |
| Marked | 32 (20.4) | 42 (19.8) | 39 (19.9) | |
| Non-applicable | 8 (5.1) | 5 (2.4) | 9 (4.6) | |
| Follow-up duration, mo | 60.0 (44.5–74.5) | 61.0 (49.0–87.8) | 60.0 (48.0–78.0) |
Data are presented as mean±SD, number (%), or median (interquartile range).