Where system of clinical "failure" may be a cause, research often distinguishes between "failure" of the healthcare provider or "failure" of the system (re-enablement, community, primary care etc.).
To distinguish the two, the time for an Non-Elective readmission can be used e.g. 7 days. Nationally, over 52% of all readmissions occur within 7 days which can be attributed to a "failure" of the healthcare provider. Everything over 7 days is often attributed to a failure of the system e.g. where support services are missing or treatment is delayed.
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