Table 3.

Multivariate model of risk factors for delirium after cardiac surgery

Variable	OR	Standard error	95% CI	p value
Predisposing factors
Education level (years)	0.81	0.05	0.71–0.92	< 0.01
Systemic arterial hypertension	2.73	1.18	1.16–6.40	0.02
Valve disease
Mitral valve disease	2.93	1.19	1.32–6.50	< 0.01
Aortic valve disease	1.55	0.71	0.63–3.84	0.33
Triggering factors
AF post-surgery	2.49	0.93	1.20–5.20	0.01

OR Odds ratio, 95% CI 95% confidence interval, AF Atrial fibrillation