Table 2.

Multivariate logistic analysis of transfusion in patients following TKA

	B	SE	Wald	OR	95%CI	P
Age	0.031	0.009	12.288	1.032	1.014–1.050	0.000
BMI	−0.059	0.017	12.484	0.942	0.912–0.974	0.000
Procedure	1.725	0.133	167.779	5.613	4.324–7.287	0.000
CHD	0.495	0.169	8.605	1.641	1.179–2.285	0.003
Hb	−0.089	0.005	314.136	0.915	0.906–0.924	0.000

TKA Total knee arthroplasty, BMI Body mass index, CHD Coronary heart disease, Hb Hemoglobin