Delirium during Weaning from Mechanical Ventilation

Table 3

Results of multivariated analysis using canonical discriminant analysis (CDA) for the occurrence of delirium. The variables maintained in the model (𝑃<0.05) and used to generate the canonical root are shown in bold.

Variation source	Wilk 𝜆	Partial 𝜆	𝐹	𝑃
Age	0.83	0.89	7.03	0.01
SOFA score	0.81	0.92	5.25	0.03
APACHE II score	0.85	0.88	7.94	0.01
Neurological cause	0.84	0.89	7.13	0.01
Sex	0.75	1.00	0.01	0.93
PC1*	0.73	0.98	1.41	0.24

∗PC1 with an eigenvalue of 2.95 is the first in the analysis of principal components, which summarises that 74% of variability is contained in the variables: total midazolam (𝑟=−0.80), MV (𝑟=−0.98), weaning time (𝑟=−0.69), and time in ICU (𝑟=−0.93). SOFA: sequential organ failure assessment; APACHE II: acute physiology and chronic health evaluation.