Table 5. Multivariate logistic regression analysis for POD.

Variables	Odds ratio (95% confidence interval)	P value
Preoperative characteristics
Male	2.35 (0.24–22.70)	0.461
Age >75 years	3.85 (1.00–14.70)	0.049
Surgical intervention
Use of IABP	1.03 (0.17–6.13)	0.972
OPCAB	0.93 (0.16–5.51)	0.994
Postoperative complication
Re-stenotomy	3.34 (0.12–9.30)	0.477
Mediastinitis	1.54 (0.33–7.33)	0.585
Atrial fibrillation	1.04 (0.27–4.03)	0.953
Renal failure (Cre >1.5 mg/dL)	1.55 (0.33–7.21)	0.575
Re-intubation	3.34 (0.12–9.30)	0.477
Use of Suvorexant	0.42 (0.18–0.98)	0.028

OPCAB: off-pump coronary artery bypass grafting; IABP: intra-aortic balloon pumping; POD: postoperative delirium