[Return rate to the Primary Care Emergency Service for elderly patients over 65 years old and their assistance requirements].

Objective: To determine the unexpected return rate to the Primary Care Emergency Service of elderly patients over 65 years old within the following 72h of a previous visit, as well as to determine the clinical and assistance requirements of these patients.

Procedure: Retrospective and observational epidemiologic study.

Location: Cotolino's Primary Care Emergency Service in Cantabria, Spain.