Categorical variables | Case (n = 16) | Matched controls (n = 131) | P value | ||
---|---|---|---|---|---|
n | % | n | % | ||
Male | 10 | 62.5 | 61 | 46.6 | < 0.001* |
ASA PS | 0.174 | ||||
I–II | 14 | 87.5 | 101 | 77.1 | |
III–IV | 2 | 12.5 | 30 | 22.9 | |
Emergency operation | |||||
Yes | 4 | 25.0 | 16 | 12.2 | 0.003* |
Anesthetic technique | < 0.001* | ||||
ETGA | 14 | 87.5 | 85 | 64.9 | |
LMA | 2 | 12.5 | 46 | 35.1 | |
Difficult airway | |||||
Yes | 0 | 0 | 17 | 13.0 | < 0.001* |
Type of inhaled anesthetic | 0.016* | ||||
Desflurane | 5 | 31.3 | 18 | 13.7 | |
Sevoflurane | 11 | 68.7 | 107 | 81.7 | |
Active smoker | |||||
Yes | 9 | 56.3 | 26 | 20.0 | < 0.001* |