Hampering efforts to reduce avoidable hospital readmissions is a lack of information about the extent to which hospitals are implementing evidence-based practices and about which practices have the most impact in different settings. The national Hospital to Home (H2H) campaign, which aims to lower readmission rates for cardiovascular patients by 20 percent by 2012, provides an opportunity to get answers to these questions. The project team will first conduct a baseline survey of 600 participating hospitals to identify their current practices for reducing readmissions. These same hospitals will then be resurveyed one year later, allowing the researchers to track the spread and speed of adoption of best practices promoted in the campaign. In addition, the team will examine the associations between reported practices and various hospital characteristics with readmission rates to pinpoint which practices lead to lower readmission rates.