Incidence and Risk Factors for Delirium among Mechanically Ventilated Patients in an African Intensive Care Setting: An Observational Multicenter Study

Table 5

Significant predictors for delirium among ICU patients on mechanical ventilation at bivariate and multivariate analysis.

Variable	Bivariate analysis			Multivariate analysis
	OR ratio	95% CI	value	OR ratio	95% CI	value
Mental illness history	3.132	1.034–9.488	0.043	0.18	0.05–0.59	0.005
Multiorgan dysfunction
TBI	1	—		1	—
HIV	0.42	0.11–1.61	0.204	0.52	0.08–3.38	0.493
DM	1.50	0.27–8.19	0.640	2.65	0.18–38.82	0.477
HTN	3.00	0.42–21.30	0.272	4.16	0.31–55.60	0.281
ARDS	3.67	0.86–15.59	0.079	6.44	0.86–48.30	0.070
Sepsis	4.50	1.07–18.92	0.040	3.64	0.51–25.76	0.196
Had neurosurgery	0.419	0.217–0.810	0.010
Higher respiratory rate	1.076	1.024–1.130	0.004
Higher MAP	1.016	1.001–1.030	0.031	1.01	0.98–1.04	0.574
Oliguria	2.674	1.376–5.199	0.004	1.94	0.54–6.89	0.307
Fevers	2.491	1.309–4.742	0.005
Respiratory acidosis	1.027	1.008–1.046	0.006	1.04	1.01–1.08	0.018
Metabolic acidosis	1.071	1.007–1.139	0.030	1.07	0.94–1.21	0.312
Anaemia	4.278	1.973–9.274	0.000	5.65	1.57–20.36	0.008
Sedation	0.262	0.135–0.507	0.000	0.18	0.05–0.59	0.005
PEEP	1.345	1.120–1.616	0.002	1.38	1.04–1.83	0.024
Endotracheal intubation	1.78	0.87–3.62	0.114	6.89	1.65–28.71	0.008
Surgery	0.42	0.22–0.81	0.010	0.29	0.07–1.22	0.092