Characteristics of adenomas in 203 patients
| No patients | No adenomas | |
| Multiplicity | ||
| 1 adenoma | 131 | |
| 2 adenomas | 43 | |
| ⩾3 adenomas | 29 | |
| Total | 203 | |
| Location | ||
| Caecum and ascending colon | 67 | |
| Transverse colon | 53 | |
| Descending colon | 26 | |
| Sigmoid colon | 111 | |
| Rectum (⩽15 cm) | 68 | |
| Total | 325 | |
| Size (mm) | ||
| <10 | 234 | |
| 10–19 | 64 | |
| ⩾20 | 29 | |
| Total | 327 | |
| Worst histopathology | ||
| Tubular | 157 | |
| Tubulovillous/villous | 46 | |
| Total | 203 | |
| Degree of dysplasia | ||
| Mild | 217 | |
| Moderate | 90 | |
| Severe | 12 | |
| Total | 319 |