Diagnostic procedures
| Procedure (cost per procedure9) | Endoscopy group (n=19) | Surgery group (n=19) | ||||
|---|---|---|---|---|---|---|
| Number of procedures | Mean number per patient | SD | Number of procedures | Mean number per patient | SD | |
| Abdominal CT scan (£168) | 13 | 0.68 | 0.95 | 26 | 1.37 | 1.46 |
| MR cholangiopancreatography (£190) | 17 | 0.89 | 1.20 | 18 | 0.95 | 1.78 |
| Abdominal ultrasound (£50) | 17 | 0.89 | 1.15 | 28 | 1.47 | 1.87 |
| Endoscopic ultrasound (£591) | 5 | 0.26 | 0.45 | 1 | 0.05 | 0.23 |
| Gastroscopy (£337) | 6 | 0.32 | 0.58 | 7 | 0.37 | 0.76 |
| Colonoscopy (£638) | 3 | 0.16 | 0.50 | – | – | – |
| Flexible sigmoidoscopy (£638) | 1 | 0.05 | 0.23 | – | – | – |
| Radiography (£29) | 32 | 1.68 | 7.10 | 3 | 0.16 | 0.50 |
| Missing data* (£157) | 2 | 0.11 | 0.32 | – | – | – |
| All | 96 | 5.05 | 8.15 | 83 | 4.37 | 5.10 |
*To cost the missing data, we used the weighted average cost of the diagnostic procedures undergone in the endoscopy group.