Predictors of perioperative respiratory adverse events
| Variables, n (%) | Univariable regression OR (95% CI) | Multivariable regression aOR (95% CI) | P value |
| With comorbidities | 10.4 (4.9 to 21.9) | 1.61 (0.41 to 6.6) | 0.456 |
| Respiratory comorbidities | 24.3 (6.6 to 89.6) | 6.3 (1.19 to 33.2) | 0.003 |
| Obesity or sleep apnea | 9.3 (4.2 to 20.7) | 1.5 (0.6 to 10.5) | 0.203 |
| Passive smoking | 15.4 (7.1 to 33.4) | 5.31 (2.07 to 13.64) | 0.001 |
| Respiratory infection <15 days ago | 3.04 (1.55 to 5.98) | 0.21 (0.017 to 2.8) | 0.242 |
| Patient postponed before 15 days | 7.7 (3.4 to 17.6) | 4.3 (0.83 to 22.4) | 0.028 |
| COLDS score >10 | 4.43 (2.29 to 8.80) | 3.7 (0.25 to 53.4) | 0.036 |
aOR, adjusted OR.