Table 5.

Hospital stay and perioperative complications.

	Delirium group(n = 53)	Non-delirium group (n = 246)	OR (95% CI)	P
Hospital stay, days	33.1 (14–139)	23.3 (12–86)	1.04 (1.02–1.06)	<0.001**
Epidural hematoma	1 (1.9)	6 (2.4)	0.77 (0.09–6.53)	0.804
Surgical site infection	3 (5.7)	1 (0.4)	14.70 (1.50–144.22)	0.011*
Wound complication	3 (5.7)	3 (1.2)	4.86 (0.95–24.78)	0.068
Nerve root palsy	1 (1.9)	6 (2.4)	0.77 (0.09–6.53)	0.804
Pneumonia	1 (1.9)	0 (0.0)		0.062
Urinary tract infection	4 (7.5)	3 (1.2)	6.61 (1.43–30.48)	0.018*
Heart failure	3 (5.7)	2 (0.8)	7.32 (1.19–44.94)	0.033*
Deep venous thrombosis	1 (1.9)	1 (0.4)	4.71 (0.29–76.55)	0.297
Pulmonary embolism	1 (1.9)	0 (0.0)		0.062
Rectal ulcer	0 (0)	1 (0.4)		0.532

Data are presented as average (range) or n (%). P < 0.05 is considered statistically significant. *P < 0.05, **P < 0.01.

OR, odds ratio; CI, confidence interval.