Table 1.
invasion1 status, grading, and site of traditional adenomas
| TA2 | TVA2 | VA2 | P value | |
|---|---|---|---|---|
| Invasion | 3 (1.2%) | 10 (8.8%) | 11 (35.5%) | < 0.0001 |
| Grade | < 0.0001 | |||
| Mixed adenomatous-hyperplastic | 17 (6.6%) | 0% | 0% | |
| Low-grade adenomatous | 217 (84.1%) | 76 (66.7%) | 16 (51.6%) | |
| High-grade adenomatous | 24 (9.3%) | 38 (33.3%) | 15 (48.4%) | |
| Polyp Site | < 0.0001 | |||
| Right colon | 103 (39.9%) | 27 (23.7%) | 5 (16.1%) | |
| Left colon | 118 (45.7%) | 64 (56.1%) | 21 (67.7%) | |
| Rectum | 37 (14.3%) | 22 (19.3%) | 5 (16.1%) |
1 Invasion not beyond mucosa or muscularis mucosae; 2 Abbreviations: TA, tubular adenoma; TVA, tubulovillous adenoma; VA, villous adenoma