Table 4.

Multivariate logistic regression model

Variables	p-value	OR	95% CI of OR
Female sex	0.068	2.365	0.939	5.956
Cardiovascular as a reason for MV initiation	0.891	0.924	0.298	2.863
Respiratory as a reason for MV initiation	0.149	0.410	0.122	1.377
Sepsis as a reason for MV initiation	0.118	0.277	0.055	1.387
Presence of complications	0.002	4.823	1.761	13.206
MODS	<0.001	8.711	3.077	24.660
PRISM III on admission	<0.001	1.406	1.260	1.568
MV duration	0.008	0.909	0.846	0.976