Although a focus on readmissions may have good face validity, we believe that policymakers' emphasis on 30-day readmissions is misguided, for three reasons. First, the metric itself is problematic: only a small proportion of readmissions at 30 days after initial discharge are probably preventable, and much of what drives hospital readmission rates are patient- and community-level factors that are well outside the hospital's control. Furthermore, it is unclear whether readmissions always reflect poor quality: high readmission rates can be the result of low mortality rates or good access to hospital care. Second, although improving discharge planning and care coordination is a laudable goal, there are better, more targeted policies that are more likely to be effective in achieving it. Finally, because hospitals are expending so much energy on reducing readmissions, they have probably forgone quality-improvement efforts related to more urgent issues, such as patient safety. An evidence-based, holistic approach to quality improvement is far more likely to achieve what policymakers, clinicians, and the public all want: better care at lower cost.
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