Predicting the risk of death following coronary artery bypass graft made simple: a retrospective study using the American College of Surgeons National Surgical Quality Improvement Program database

Table 2 Results of Multivariate Analysis

Variable*	Odds ratio	95% CI	Pvalue	β coefficient
Age	2.28	1.43 - 3.62	0.0005	0.0549
Dyspnea with Moderate Exertion	1.39	0.73 - 2.66	0.3174	0.3306
Dyspnea at Rest	2.99	1.30 - 6.87	0.0101	1.0937
History of MI	2.52	1.38 - 4.62	0.0027	0.9246
Previous PCI	1.76	0.97 - 3.21	0.0648	0.5655
Preoperative Sodium	0.64	0.46 - 0.88	0.0062	−0.1135
Preoperative BUN	1.20	1.03 - 1.40	0.0194	0.0204

*Odds ratios for continuous variables were calculated comparing first and third quartile values.
Age: 60 years : 74 years.
Preoperative Sodium: 136 mmol/L: 140 mmol/L.
Preoperative BUN: 13 mg/dL: 22 mg/dL.
MI = myocardial infarct, PCI = percutaneous coronary intervention, BUN = blood urea nitrogen.

ISSN: 1749-8090