Abstract
Objective: To map the scientific literature on the performance of the National Early Warning Score 2 (NEWS2) in recognizing clinical deterioration in patients in pre-hospital and hospital settings. Method: This scoping review protocol is developed by the Joanna Briggs Institute (JBI) guidelines and follows the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Extension for Scoping Reviews (PRISMA-ScR). The review will include full-text original articles and grey literature without temporal or language restrictions. The search strategy will be implemented across databases such as MEDLINE, Embase, Scopus, LILACS, Web of Science, and grey literature sources. Titles, abstracts, and full texts, as well as the selection of records and data extraction, will be independently assessed by two reviewers, with blinding maintained throughout all stages. Any disagreements will be resolved by a third reviewer. Reference lists of included studies will be examined to identify studies not captured in the initial search and used as additional sources. Identified records will be grouped and loaded into the Rayyan management system for duplicate removal and final selection. Extracted data will be categorized, summarized, and presented in tables, charts, maps, and narrative summaries.
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