Table 3.
Univariate and multivariate analysis of risk factors associated with Grade ≥ II complications
| Variable | Univariate | Multivariate | ||
|---|---|---|---|---|
| Odds ratio (95% CI) | p value | Odds ratio (95% CI) | p value | |
| Age (per year) | 1.02. (1.00 to 1.03) | 0.013 | 1.02 (1.00 to 1.03) | 0.016 |
| ASA score (1/2 vs 3/4) | 1.22 (0.91 to 1.65) | 0.185 | 1.09 (0.79 to 1.52) | 0.588 |
| Male sex | 1.2 (0.91 to 1.62) | 0.196 | 0.78 (0.57 to 1.07) | 0.124 |
| Malign tumor | 1.25 (0.75 to 2.08) | 0.399 | ||
| BMI, kg/m2 | 0.99 (0.96 to1.02) | 0.446 | ||
| Multiple (> 1) lesions | 1.45 (1.06 to 1.98) | 0.019 | 1.35 (0.97 to 1.89) | 0.079 |
| Concomitant ablation | 0.87 (0.46 to 1.64) | 0.659 | ||
| Extent of resection | ||||
| Minor (ref.) | ||||
| Technically major | 1.23 (0.91 to 1.69) | 0.183 | 1.14 (0.81 to 1.59) | 0.457 |
| Anatomically major | 2.76 (1.67 to 4.56) | < 0.001 | 1.96 (1.12 to 3.44) | 0.019 |
| Size of tumor, cm | 1.05 (1.00 to 1.11) | 0.052 | 1.04 (0.99 to 1.10) | 0.145 |
ASA American Society of Anesthesiologists, BMI body mass index