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. Author manuscript; available in PMC: 2016 Oct 1.
Published in final edited form as: Ann Thorac Surg. 2015 Jul 16;100(4):1276–1283. doi: 10.1016/j.athoracsur.2015.04.038

Table 2. Risk-Adjusted Associations Among Patient, Operation, and Hospital-Related Risk Factors for Outcome of Postoperative Stroke.

Risk Factor Likelihood Ratio (Wald) AOR p Value
Hospital 71.43 … <0.001
Surgeon 61.20 … 0.01
Age 60.76 1.04 <0.001
Nonelective status 60.35 4.20 <0.001
Cerebrovascular disease 33.71 1.88 <0.001
Renal failure 14.31 1.70 <0.001
Heart failure 13.00 1.50 <0.001
Male 9.68 0.74 <0.001
Hypertension 9.33 1.51 <0.001
Procedure type 7.44 0.02
 CABG only (reference) … …
 AV replacement 1.28 0.18
 AV replacement + CABG 1.53 0.04
 MV repair 0.87 0.11
 MV repair + CABG 1.40 0.86
 MV replacement + CABG 2.10 0.03
 MV replacement only 1.73 0.04
Peripheral vascular disease 5.46 1.31 0.02
Year 0.81 … 0.73

Model performance: area under receiver-operating characteristics curve = 0.78, Hosmer-Lemeshow p = 0.95, Nagelkerke pseudo R2 = 0.25.

AOR = adjusted odds ratio; AV = aortic valve; CABG = coronary artery bypass graft surgery; MV = mitral valve.