| Positive yield in IDA | Findings | Number of patients |
|---|---|---|
| UGI tests (n = 264) | Vascular lesions | 4 |
| Haemorrhagic gastritis | 2 | |
| Coeliac disease | 2 | |
| Probable gastric cancer | 1 | |
| LGI tests (n = 266) | CRC | 17 |
| Haemorrhoids with per rectal bleed | 2 | |
| Large polyp | 2 | |
| Prostate cancer, malignant melanoma with metastases (both found on CT) | 1, 1 | |
| Inflammatory bowel disease | 1 | |