Table 3.

Adjusted odds ratios and p-values after binary logistic regression, for blood transfusion, urinary catheterization requirements, and incidence of early postoperative complications, according to age. Group 1 was used as the reference group

	Adjusted Odds ratio (95% CI)			Co-variates
	Group 2	Group 3	p-value	adjusted for
Blood transfusion	1.4 (0.99–1.9)	1.8 (1.3–2.6)	0.004	Preop. Hb., ASA
Urinary catheterization	1.8 (1.5–2.3)	2.4 (1.8–3.1)	< 0.001	Sex, ASA
Acute confusion	3.3 (1.5–7.2)	4.3 (1.9–9.8)	0.001	ASA
Cardiac arrhythmia	3.4 (1.6–7.2)	4.6 (2.0–10.6)	< 0.001	Preop. Hb