Objective To systematically screen,evaluate,summarize and extract the optimal evidence for the application of the diary method in adult patients in the intensive care unit(ICU),so as to provide evidence-based basis for the implementation of the diary method in ICU.Methods All the evidence on the application of the diary to adult ICU patients were searched in relevant professional websites and databases at home and abroad,including the guidelines,evidence summary,expert consensus,systematic reviews,clinical decisions,etc.The retrieval time was from the establishment of the database to January 2...