Determinants | Univariate analysis | Multivariate analysis | ||
P | OR (IC95%) | P | ORa (IC95%) | |
Sex Women Men Age ≤37 y >37 y ASA Class 1 2 Type of anesthesia Others Narcosis |
0.038
0.014
0.004
0.007 |
1 3.1 (0.9 - 10.2)
1 1.1 (1 - 1.1)
1 2.1 (1.2 - 3.1)
1 3.1 (1.1 - 9.7) |
0.887
0.301
0.023
0.146 |
1 1.09 (0.3 - 3.7)
1 0.3 (0.03 - 2.1)
1 3.3 (1.1 - 9.7)
1 0.9 (0.02 - 2.7) |