Figure 3. Risk model elements: 30 day readmission.
After Bayesian model averaging with multivariable logistic regression, eight variables were retained in the final risk model. Functional mobility based on Timed Up and Go (TUG) with reference: TUG <15 seconds. Diastolic BP based on categories (in mmHg): <50, 50–59, 60–79, 80–89, 90–99, >100 with reference: <50. SF-12 general health status treated as four-level variable based on single question (“In general, would you say your health status is (1) excellent or very good; (2) good; (3) fair; (4) poor”) with reference: poor. Ejection fraction treated as four-level categorical variable (≥50%, 40–49%, 30–39%, <30%) with reference: <30%.