highly significantp < 0.001
Internal Validation and Model Diagnostics The multivariable binomial logistic regression model constructed to evaluate 12-month mortality demonstrated an excellent overall fit (Deviance = 358, AIC = 370, BIC = 393, McFadden’s R 2 = 0.228) and was statistically highly significant (Omnibus likelihood ratio test χ 2 = 106, df = 5, p < 0.001).