a strong trend toward significancep = 0.052
However, when entering the perioperative low cardiac output, a well-recognized predictor of hospital death, and AST in a multivariable analysis, both variables maintained a strong trend toward significance in predicting early mortality ( p = 0.052, OR [95% CIs] = 1.04 [1–1.08] for AST; and p = 0.048, OR [95% CIs] = 6.9 [1.06–45.0] for low cardiac output).