Table 2.
Upper gastrointestinal lesions according to presence of iron deficiency anemia
| Variable | IDA (n = 128) | No IDA (n = 512) | p value |
|---|---|---|---|
| Gastric cancer | 0 | 1 (0.2) | 1.000 |
| Gastric adenoma | 0 | 0 | NA |
| Gastric polyp | 3 (2.3) | 10 (2.0) | 0.730 |
| Gastric ulcer | 6 (4.7) | 5 (1.0) | 0.011 |
| Gastric erosion | 31 (24.2) | 103 (20.1) | 0.308 |
| Duodenal adenoma | 0 | 0 | NA |
| Duodenal polyp | 0 | 4 (0.8) | 0.589 |
| Duodenal ulcer | 1 (0.8) | 4 (0.8) | 1.000 |
| Duodenal erosion | 0 | 2 (0.4) | 1.000 |
| Esophageal ulcer | 0 | 1 (0.2) | 1.000 |
| Angiodysplasia | 1 (0.8) | 0 | 0.200 |
| Upper gastrointestinal lesions, total | 38 (29.7) | 121 (23.6) | 0.156 |
Values are presented as number (%). Matching variables in case-control were age, smoking status, family history of colorectal cancer, and use of nonsteroidal anti-inflammatory drugs.
IDA, iron deficiency anemia; NA, not available.