Table 3.
Comparison of sex, age, number, size, and location of polyps among patients with or without adenomatous polyps in no-screening colonoscopy (n=2,958)
| Adenomatous polyps (n=1,691) | Nonadenomatous polyps (n=1,267) | P-value | |
|---|---|---|---|
| Sex | 0.263 | ||
| Women | 556 (58.7%) | 392 (41.3%) | |
| Men | 1,135 (56.5%) | 875 (43.5%) | |
| Mean age (years) | 56.7±12.0 | 52.8±12.1 | <0.001 |
| Number of polyps | <0.001 | ||
| 1 | 1,112 (52.0%) | 1,025 (48.0%) | |
| ≥2 | 579 (70.5%) | 242 (29.5%) | |
| Mean polyp size (cm) | 0.74±60 | 0.40±0.15 | <0.001 |
| Polyp size (cm) | <0.001 | ||
| ≤0.5 | 889 (45.4%) | 1,069 (54.6%) | |
| 0.6–0.9 | 412 (67.7%) | 197 (32.3%) | |
| ≥1.0 | 390 (99.7%) | 1 (0.3%) | |
| Location of polyps | <0.001 | ||
| Distal colon | 1,003 (53.2%) | 882 (46.8%) | |
| Proximal colon | 405 (59.5%) | 276 (40.5%) | |
| Bilateral colon | 283 (72.2%) | 109 (27.8%) |