RESUMEN
INTRODUCTION AND AIM: The Appropriateness Evaluation Protocol (AEP) tool analyzes inappropriate hospital stays and admissions. This study aimed to adapt the AEP questionnaire in order to analyse the appropriateness of hospital admissions and stays in our healthcare reality. METHODS: A study was conducted using the Delphi method in which 15 experts in clinical management and hospital care participated. The initial questionnaire items were taken from the first version of the AEP. In the first round, the participants contributed new items that they considered relevant in our current reality. In rounds 2 and 3, they evaluated 80 items according to their relevance using a Likert scale from 1 to 4 (maximum usefulness). Pursuant to the study's design, AEP items were considered adequate if the mean score according to the experts' evaluation was greater than or equal to 3. RESULTS: The participants defined a total of 19 new items. In the end, 47 items earned a mean score greater than or equal to 3. The resulting modified questionnaire include 17 items in "Reasons for Appropriate Admissions," 5 in "Reasons for Inappropriate Admissions," 15 in "Reasons for Appropriate Hospital Stays," and 10 in "Reasons for Inappropriate Hospital Stays." CONCLUSIONS: The identification according to expert opinion of priority items to determine the appropriateness of admissions and extended stays could be used in the future to help create an instrument to be used in our setting.