Table 1 Comparison of the basic characteristics of patients with EGC between the delayed bleeding group and the nonbleeding group
|  | Nonbleeding group (n = 417) | Delayed bleeding group (n = 27) | χ2 or t value | P value |
|---|---|---|---|---|
Age (years, mean ± SD) | 63.08 ± 9.317 | 63.00 ± 12.175 | 0.041 | 0.135 |
Sex [n (%)] | Â | Â | 0.177 | 0.674 |
 Male | 293 (70.3) | 20 (74.3) |  |  |
 Female | 124 (29.7) | 7 (25.9) |  |  |
Hypertension [n (%)] | Â | Â | 0.073 | 0.787 |
 No | 258 (61.9) | 16 (59.3) |  |  |
 Yes | 159 (38.1) | 11 (40.7) |  |  |
Coronary heart disease [n (%)] | Â | NA | 1.000 | |
 No | 376 (90.2) | 25 (92.6) |  |  |
 Yes | 41 (9.8) | 2 (7.4) |  |  |
Diabetes [n (%)] | Â | Â | NA | 0.444 |
 No | 341 (81.8) | 24 (88.9) |  |  |
 Yes | 76 (18.2) | 3 (11.1) |  |  |
Anticoagulant medication history [n (%)] | Â | NA | 0.172 | |
 No | 415 (99.5) | 26 (96.3) |  |  |
 Yes | 2 (0.5) | 1 (0.2) |  |  |
Antiplatelet medication history [n (%)] | Â | NA | 1.000 | |
 No | 376 (90.2) | 25 (92.6) |  |  |
 Yes | 41 (9.8) | 2 (7.4) |  |  |
Antidepressant medication history [n (%)] | Â | NA | 0.223 | |
 No | 414 (99.3) | 26 (96.3) |  |  |
 Yes | 3 (0.7) | 1 (0.2) |  |  |
Proprietary Chinese medicine history [n (%)] | NA | 0.614 | ||
 No | 402 (96.4) | 27 (100.0) |  |  |
 Yes | 15 (3.6) | 0 (0.0) |  |  |
Smoking [n (%)] | Â | 4.072 | 0.044* | |
 No | 252 (60.4) | 11 (40.7) |  |  |
 Yes | 165 (39.6) | 16 (59.3) |  |  |
Drinking [n (%)] | Â | 1.904 | 0.168 | |
 No | 271 (65.0) | 14 (51.9) |  |  |
 Yes | 146 (35.0) | 13 (48.1) |  |  |
Family history of digestive tract tumors [n (%)] | 1.188 | 0.276 | ||
 No | 317 (76.0) | 23 (85.2) |  |  |
 Yes | 100 (24.0) | 4 (14.8) |  |  |