Table 3. A Summary of the Two-Variable Risk Factor Glimmix Model
Risk Factors30-Day Readmission Risk (%)*
Polypharmacy and high Charlson score19.0
High Charlson score12.0
Neither factor5.8
  • * Estimates are based on a Glimmix logistic regression model of 958 admissions among 528 patients. P < .05 for a test of the main Charlson and polypharmacy effects.