Cancers detected during screening
| Sex | Age (y) | Site | Size (mm) | Dukes’s stage | Removal | |
| Welwyn Garden City | ||||||
| 1 | M | 57 | SC (25 cm) | 9 | A | Sigmoid colectomy |
| 2 | F | 63 | SC (25 cm) | 20 | C | Anterior resection |
| 3 | M | 64 | SC (25 cm) | 25 | A | Endoscopic |
| 4 | F | 64 | SC (20 cm) | 20 | B | Anterior resection |
| Leicester | ||||||
| 1 | M | 64 | RM (10 cm) | 80 | C | Anterior resection |
| 2 | F | 58 | DC (40 cm) | 60 | A | Endoscopic |
| 3 | M | 62 | SC (25 cm) | 20 | A | Anterior resection |
| 4 | M | 60 | RM (10 cm) | 20 | A | Resectoscope |
| 55-150 | F | 63 | SF (80 cm) | 50 | C | Left hemicolectomy |
↵5-150 Detected at subsequent colonoscopy.
SC, sigmoid colon; RM, rectum; DC, descending colon; SF, splenic flexure.