Table 5.
Comparison of sex, age, number, size, and location of polyps among patients with or without advanced adenomatous polyps in screening colonoscopy (n=596)
| Advanced adenoma (n=128) | Unadvanced adenoma (n=468) | P-value | |
|---|---|---|---|
| Sex | 0.571 | ||
| Women | 35 (20.0%) | 140 (80.0%) | |
| Men | 93 (22.1%) | 328 (77.9%) | |
| Mean age (years) | 56.2±11.2 | 54.0±11.1 | 0.049 |
| Number of polyps | <0.001 | ||
| 1 | 62 (14.6%) | 364 (85.4%) | |
| ≥2 | 66 (38.8%) | 104 (61.2%) | |
| Mean size of polyps (cm) | 1.26±0.74 | 0.45±0.15 | <0.001 |
| Size of polyps (cm) | <0.001 | ||
| ≤0.5 | 12 (3.3%) | 349 (96.7%) | |
| 0.6–0.9 | 15 (11.2%) | 119 (88.8%) | |
| ≥1.0 | 101 (100.0%) | 0 | |
| Location of polyps | <0.001 | ||
| Distal colon | 81 (23.0%) | 272 (77.0%) | |
| Proximal colon | 16 (10.0%) | 145 (90%) | |
| Bilateral colon | 31 (37.8%) | 51 (62.2%) |