Table 3. Univariate and multiple logistic regression analyses for POCD.

Variables	Univariate		Multivariate
	OR(95%CI)	P-value	OR(95%CI)	P-value
Age	2.23(1.07–4.63)	0.022*	1.44(0.29–2.51)	0.57
ASA grade (I/II vs III)	1.23(0.64–2.36)	0.58
Diabetes	1.05(0.95–1.17)	0.24
Hypertension	2.24(0.46–5.37)	0.28
Preoperative MMSE	0.96(0.75–1.24)	0.57
Type of anesthesia (spinal vs general)	2.58(1.29–5.11)	0.009*	1.48(0.93–2.38)	0.17
Duration of surgery	1.09(0.54–2.13)	0.76
Duration of anesthesia	1.69(0.81–3.53)	0.17
CRP on POD1	2.08(1.07–4.01)	0.033*	1.38(0.72–2.91)	0.13
MDA on POD1	1.14 (1.06–1.24)	0.002*	1.12(1.03–1.23)	0.017*
SOD on POD1	1.59 (1.17–2.18)	0.015*	1.56(0.84–2.87)	0.15

CI, confidence interval; OR, odds ratio. *P<0.05.