Table 2

Thirty-day readmission rates: pre-intervention and post-intervention periods* for all patients by HF and control groups

Patient typePre-intervention (%)Post-intervention (%)Difference (95% CI)p ValueAdjusted OR† (95% CI)p Value
HFAll26.221.25.0 (1.0 to 9.0)0.010.73 (0.58 to 0.93)<0.01
AMI and PNAAll15.516.7−1.2 (−5.4 to 2.9)0.561.09 (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.