Table 5.
Univariate and multivariate analysis of the overall complications for the very elderly patients
| Risk factors | Univariate analysis | Multivariate analysis | ||
|---|---|---|---|---|
| OR (95% CI) | P value | OR (95% CI) | P value | |
| Surgical methods (open/laparoscopic) | 2.568 (1.469–4.490) | 0.001** | 2.552 (1.410–4.618) | 0.002** |
| Sex (male/female) | 0.863 (0.548–1.358) | 0.524 | ||
| BMI, kg/m2 | 0.947 (0.884–1.013) | 0.112 | ||
| Hypertension (yes/no) | 0.839 (0.534–1.317) | 0.445 | ||
| T2DM (yes/no) | 1.094 (0.628–1.908) | 0.750 | ||
| Tumor location (colon/ rectum) | 0.876 (0.556–1.381) | 0.569 | ||
| Tumor stage (III/II/I) | 0.917 (0.672–1.251) | 0.584 | ||
| Smoking (yes/no) | 1.332 (0.814–2.178) | 0.254 | ||
| Drinking (yes/no) | 1.163 (0.664–2.035) | 0.598 | ||
| CHD (yes/no) | 1.266 (0.653–2.454) | 0.485 | ||
| Operation time, min | 1.003 (1.000–1.006) | 0.069 | 1.003 (0.999–1.006) | 0.155 |
| Blood loss, mL | 1.002 (1.000–1.003) | 0.060 | 1.000 (0.999–1.002) | 0.676 |
OR, Odds ratio; CI, confidence interval; BMI, body mass index; T2DM, type 2 diabetes mellitus; CHD, coronary heart disease
* P-value < 0.05, ** P-value < 0.01