Table 5.
Relationship between patients’ most advanced finding on first colonoscopy and on any follow-up colonoscopy
| Most advanced finding at first colonoscopy | Most advanced finding on any follow up colonoscopy | |||||
|---|---|---|---|---|---|---|
| Normal | Metaplastic polyp | Simple adenoma | Multiple adenoma | High risk adenoma | Cancer | |
| Normal (n = 116) | 76 (65.5) | 13 (11.2) | 16 (13.8) | 2 (17.2) | 8 (6.9) | 1 (0.86) |
| Metaplastic polyp (n = 7) | 5 (71.4) | 1 (14.3) | 1 (14.3) | 0 | 0 | 0 |
| Simple adenoma (n = 8) | 4 (50) | 1 (12.5) | 3 (37.5) | 0 | 0 | 0 |
| Multiple adenoma (n = 3) | 1 (33.3) | 0 | 0 | 1 (33.3) | 1 (33.3) | 0 |
| High risk Adenoma (n = 9) | 2 (22.2) | 0 | 5 (55.6) | 1 (11.1) | 1 (11.1) | 0 |
| Total (n = 143a) | 88 (61.5) | 15 (10.5) | 25 (17.5) | 4 (2.8) | 10 (7.0)b | 1 (0.7) |
Values are number of patients (%)
aThree patients were excluded due to missing data
bOne patient had high risk adenomas on two follow-up colonoscopies, another patient had high risk adenoma on one follow u on cancer. Hence, there were 12 follow-up examinations (see Table 4)