Investigations performed between 3 months and 5 years after SeHCAT testing
| SeHCAT positive (<15%) | SeHCAT negative (>15%) | |||
| Number | Tests/ patient | Number | Tests/ patient | |
| Patients (n) | 29 | 39 | ||
| Endoscopy | ||||
| Colonoscopy | 6 | 0.21 | 7 | 0.18 |
| Flexible sigmoidoscopy | 0 | 0.00 | 4 | 0.10 |
| Gastroscopy | 6 | 0.21 | 4 | 0.10 |
| Imaging | ||||
| CT | 3 | 0.10 | 17 | 0.44a |
| MRI | 2 | 0.07 | 10 | 0.26 |
| CT or MRI | 5 | 0.17 | 27 | 0.70b |
| US | 16 | 0.55 | 28 | 0.72 |
| Abdo X-ray | 9 | 0.31 | 15 | 0.38 |
| Physiology | ||||
| Glucose hydrogen-breath test | 1 | 0.03 | 2 | 0.05 |
| Lactose hydrogen-breath test | 0 | 0.00 | 3 | 0.08 |
| Other investigations | 3 | 0.10 | 5 | 0.13 |
| Blood tests/patient | ||||
| Median | 21 | 33c | ||
| IQR | 4–37 | 12–77 | ||
| Out-patient clinic visits/patient | ||||
| Median | 4 | 1d | ||
| IQR | 2–8 | 0–6 | ||
a p=0.045; bp=0.015 two tailed Fisher’s exact test; cp=0.086; dp=0.013; Mann-Whitney U-test.