Thirty-day readmission rates: pre-intervention and post-intervention periods* for all patients by HF and control groups
| Patient type | Pre-intervention (%) | Post-intervention (%) | Difference (95% CI) | p Value | Adjusted OR† (95% CI) | p Value | |
|---|---|---|---|---|---|---|---|
| HF | All | 26.2 | 21.2 | 5.0 (1.0 to 9.0) | 0.01 | 0.73 (0.58 to 0.93) | <0.01 |
| AMI and PNA | All | 15.5 | 16.7 | −1.2 (−5.4 to 2.9) | 0.56 | 1.09 (0.80 to 1.48) | 0.60 |
*Pre-intervention period: December 2008 to November 2009; post-intervention period: December 2009 to November 2010.
†The risk adjustment model includes demographic variables (age, race and sex), case mix variables and indicator variables for the pre- and post-intervention periods. For HF, the case mix variable was the e-Model. For AMI and PNA, the Tabak mortality score for AMI and PNA was used.
AMI, acute myocardial infarction; HF, heart failure; PNA, pneumonia.