Univariate | Multivariate | |||
---|---|---|---|---|
OR (95% CI) | P value | OR (95% CI) | P value | |
Sex, male vs female | 2.00 (1.12–3.57) | 0.020* | 1.96 (1.09–3.53) | 0.024* |
Age ≥ 75 yr | 1.28 (0.72–2.27) | 0.404 | ||
BMI ≥ 25 kg/m2 | 0.87 (0.48–1.56) | 0.641 | ||
ASA, III vs I, II | 1.68 (0.80–3.52) | 0.172 | ||
Current smoker vs ex-smoker, nonsmoker | 1.00 (0.39–2.54) | 0.998 | ||
Operation time ≥ 100 min | 0.97 (0.55–1.73) | 0.925 | ||
Anesthesia time ≥ 160 min | 1.52 (0.84–2.75) | 0.162 | ||
Fentanyl ≥ 250 μg | 1.03 (0.58–1.83) | 0.925 | ||
Maintenance concentration of DES ≥ 4.5 % | 1.16 (0.65–2.10) | 0.614 | ||
Age-adjusted MAC fraction ≥ 1.0 | 1.04 (0.52–2.07) | 0.907 | ||
Obstructive respiratory impairment, yes vs no | 2.07 (1.05–4.08) | 0.036* | 2.02 (1.02–4.02) | 0.045* |