Table 3. Univariate cox regression analysis for association with local recurrence.
| Characteristic | Hazard ratio | Lower 95% CI | Upper 95% CI | P value |
|---|---|---|---|---|
| Tumor size | 1.26 | 0.96 | 1.67 | 0.095 |
| Age at diagnosis | 0.99 | 0.95 | 1.03 | 0.67 |
| ASA classification | 0.41 | 0.11 | 1.50 | 0.16 |
| BMI | 0.98 | 0.89 | 1.09 | 0.77 |
| Sex | 1.62 | 0.49 | 5.39 | 0.43 |
| CEA | 3.10 | 0.38 | 24.6 | 0.26 |
| Tumor location | ||||
| Middle | 2.44 | 0.65 | 9.12 | 0.18 |
| Upper | 1.43 | 0.32 | 6.37 | 0.64 |
| LAR vs. APR | 2.89 | 6.63 | 13.21 | 0.15 |
| Neoadjuvant chemotherapy | 1.39 | 0.42 | 4.6 | 0.59 |
CI, confidence interval; BMI, body mass index; LAR, low anterior resection; APR, abdominal peritoneal resection.