| Risk category and p values | CRC N (%) | Advanced adenoma (AA) N (%) | Non-advanced adenoma (NAA) N (%) | Others N (%) | Total N |
|---|---|---|---|---|---|
| High risk (HR) | 39 (0.76) | 739 (14.44) | 2184 (42.67) | 2156 (42.13) | 5118 |
| Intermediate risk (IR) | 20 (0.47) | 385 (8.42) | 1393 (30.48) | 2771 (60.63) | 4569 |
| Chi-square p value | 0.04 | <0.001 | <0.001 | <0.001 | |