<p>This R program calculates CFI for each patient from analytic data files containing information on patient identifiers, ICD-9-CM diagnosis codes (version 32), ICD-10-CM Diagnosis Codes (versio
ObjectivesThe relationship between disability and comorbidity on mortality is widely perceived as additive in clinical models of frailty.DesignNational data were retrospectively extracted from medical
*Age-adjusted GM were calculated using linear regression.§ Age-adjusted p-value were calculated using logistic regression.# Age-adjusted p-value were calculated using ANOVA. Significant differences ar