Table 5. Univariate and Multivariate Analysis Model for Metachronous Advanced Adenoma.
| Variable | Univariate analysis | Multivariate analysis | ||
|---|---|---|---|---|
| OR (95% CI) | P-value | OR (95% CI) | P-value | |
| Age (continuous) | 1.045 (0.995–1.096) | 0.076 | 1.060 (1.007–1.117) | 0.027 |
| Male sex | 0.599 (0.195–1.845) | 0.372 | 0.884 (0.227–3.436) | 0.859 |
| BMI (≥25 kg/m2) | 1.391 (0.475–4.075) | 0.547 | - | - |
| Smoking | 2.409 (0.928–6.254) | 0.071 | 2.969 (0.911–9.672) | 0.071 |
| Family history of CRC | - | 0.999 | - | - |
| Aspirin/NSAID user | 1.469 (0.411–5.250) | 0.554 | - | - |
| Pathology at index colonoscopy | ||||
| Multiple (≥2) adenomas | 2.051 (0.790–5.324) | 0.140 | 1.963 (0.705–5.467) | 0.197 |
| Large (≥10 mm) adenoma | 1.501 (0.589–3.827) | 0.395 | 1.441 (0.538–3.860) | 0.468 |
| Proximal adenoma | 0.608 (0.239–1.545) | 0.296 | - | - |
| Non-polypoid adenoma | 1.576 (0.504–4.924) | 0.434 | - | - |
| Surveillance interval (yr) | ||||
| ≥3 | 2.204 (0.866–5.607) | 0.097 | 2.972 (1.114–7.928) | 0.03 |
| ≥5 | 2.304 (0.796–6.669) | 0.124 | - | - |
CRC, colorectal cancer.