TABLE 4.

Logistic regression analysis of risk factors associated with delirium.

	B	SE	P-value	OR	95% CI
Age	0.029	0.014	0.038${}^{\underset{¯}{a}}$	1.030	1.002	1.058
Length of physical restraint	0.029	0.005	<0.001${}^{\underset{¯}{a}}$	1.030	1.019	1.040
Interleukin-6	0.001	0.001	0.025${}^{\underset{¯}{a}}$	1.001	1.000	1.003
CD19 + B cell count	–0.004	0.002	0.016${}^{\underset{¯}{a}}$	0.996	0.993	0.999
CD4 + T cell count	0.005	0.001	<0.001${}^{\underset{¯}{a}}$	1.005	1.003	1.008
CD4/CD8 ratio	1.670	0.328	<0.001${}^{\underset{¯}{a}}$	5.314	2.796	10.099

${}^{\underset{¯}{a}}$Statistically significant (P < 0.05).

SE, Standard Error; OR, odds ratio; 95% CI, 95% confidence interval.