To date, studies have been carried out on emergency department revisits but most are studies carried out in Anglo-Saxon territories. The studies carried out in France, for their part, concern the elderly geriatric population, or populations with specific pathologies such as child psychiatrists or patients with acute heart failure, but not the general adult population. Nevertheless, these studies have shown that knowledge of the risk factors for early readmission of a patient makes it possible to carry out targeted prevention actions in order to reduce this early recourse rate.

However, in a context of increasing emergency flow and increasing tension in the field with limited healthcare resources, returning home and outpatient care are increasingly favored. However, these strategies only make sense if outpatient follow-up is organized when early reconsultation is possible for certain indications that remain to be determined. In this context, it would be interesting to have information on the reasons for which patients return to the emergency room early after initial treatment. This would indeed make it possible to consider carrying out preventive actions in the long term in order to reduce this revisit rate on the one hand and on the other hand to identify the signs of seriousness which should bring the patient back to the emergency room as soon as possible.

Inclusion Criteria:

• Major subject (≥18 years old)
• Subject treated in the emergency room of the NHC or Hautepierre and having consulted the emergency room of one of the two sites 7 days after their first visit for an identical reason for recourse between January 1, 2017 to January 31, 2023.
• Patient who has not expressed his opposition to the reuse of his data for scientific research purposes.

Exclusion Criteria:

• Patient having expressed his opposition to the retrospective reuse of his data

- Major subject (≥18 years old) treated in the emergency room of the NHC or Hautepierre and having consulted the emergency room of one of the two sites 7 days after their first visit for an identical reason for recourse between January 1, 2017 to January 31, 2023.