Table 2.
Comparison of sex, age, number, size, and location of polyps among patients with or without adenomatous polyps in screening colonoscopy (n=1,140)
| Adenomatous polyps (n=596) | Nonadenomatous polyps (n=544) | P-value | |
|---|---|---|---|
| Sex | 0.155 | ||
| Women | 175 (49.2%) | 181 (50.8%) | |
| Men | 421 (53.7%) | 363 (46.3%) | |
| Mean age (years) | 54.5±11.2 | 51.9±11.6 | <0.001 |
| Number of polyps | <0.001 | ||
| 1 | 426 (49.0%) | 443 (51.0%) | |
| ≥2 | 170 (62.7%) | 101 (37.3%) | |
| Mean polyp size (cm) | 0.63±0.50 | 0.38±0.14 | <0.001 |
| Polyp size (cm) | <0.001 | ||
| ≤0.5 | 361 (42.7%) | 484 (57.3%) | |
| 0.6–0.9 | 134 (69.1%) | 60 (30.9%) | |
| ≥1.0 | 101 (100%) | 0 | |
| Location of polyps | <0.001 | ||
| Distal colon | 353 (48.1%) | 381 (51.9%) | |
| Proximal colon | 161 (57.3%) | 120 (42.7%) | |
| Bilateral colon | 82 (65.6%) | 43 (34.4%) |