Table 3.

Logistic regression modeling for myocardial injury.

Variable	Odds ratio (95% CI)	p value
Age	1.04 (1.00–1.09)	0.032
Sex (M vs. F)	1.56 (0.81–3.03)	0.185
BMI	0.99 (0.93–1.05)	0.750
Procedure: PSF vs. THA	4.17 (1.52–11.43)	0.003
TKA vs. THA	1.06 (0.49–2.29)	0.074
β-blockers	1.85 (0.80–4.32)	0.153
Statins	0.90 (0.41–1.99)	0.791
Previous MI	0.83 (0.28–2.45)	0.730
+ Stress test	0.39 (0.05–3.06)	0.373
Angina	0.57 (0.18–1.83)	0.344
Stents	2.23 (0.89–5.58)	0.087
Previous CVA	1.64 (0.18–14.77)	0.662
DM	0.42 (0.09–1.99)	0.274
Cr ≥ 1.6	1.83 (0.47–7.15)	0.387
Previous CHF	1.34 (0.15–12.18)	0.793

PSF posterior spine fusion, THA total hip arthroplasty, TKA total knee arthroplasty, MI myocardial infarction, stents coronary artery stents, CVA cerebral vascular accident, DM diabetes mellitus, Cr blood creatinine level, CHF congestive heart failure