{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T05:54:37Z","timestamp":1790747677231,"version":"4.1.0"},"reference-count":31,"publisher":"The Korean Society of Emergency Medicine","issue":"3","license":[{"start":{"date-parts":[[2025,12,2]],"date-time":"2025-12-02T00:00:00Z","timestamp":1764633600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/3.0\/"}],"content-domain":{"domain":["ceemjournal.org"],"crossmark-restriction":true},"short-container-title":["CEEM"],"published-print":{"date-parts":[[2026,9,30]]},"abstract":"<jats:p>Objective: Despite disparities in the availability and quality of emergency care, the extent to which countries with different incomes participate in research on emergency medicine (EM) remains understudied. This study evaluated productivity in EM research depending on national income.Methods: Research published since 2004 in Scopus-indexed journals dealing with EM was analyzed quantitatively. Publication, citation, journal impact, and national socioeconomic data were compared. Automated topic modeling was applied using a latent Dirichlet allocation model.Results: The analysis included 154,458 publications (89.7% in English) from 177 countries. The studies received 1,817,635 citations. High-income countries (HICs) outperformed upper-middle-income countries (UMICs), lower-middle-income countries (LMICs), and low-income countries (LICs) by 11-, 41-, and 72-fold, respectively, by the weighted number of publications (per million population per country) by 21-, 54-, and 171-fold, respectively, and by the weighted count of citations. The annual number of publications is predicted to rise considerably for HICs, to a lesser extent for UMICs, and to far less for LMICs, but not for LICs. Research productivity was significantly related to national socioeconomic indicators. Topic modeling revealed that HICs pay relatively more attention to advances in resuscitation, whereas LICs focus more on injuries.Conclusion. While global research productivity for EM is rising, LICs lag far behind HICs. Priorities in EM research differ among countries with different incomes. The development of country-specific EM research agendas would help boost national academic productivity and determine context-appropriate interventions for improving outcomes in emergency care.<\/jats:p>","DOI":"10.15441\/ceem.25.144","type":"journal-article","created":{"date-parts":[[2025,12,2]],"date-time":"2025-12-02T08:09:21Z","timestamp":1764662961000},"page":"326-335","update-policy":"https:\/\/doi.org\/10.15441\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Global academic productivity in emergency medicine and research output by countries of different income levels"],"prefix":"10.15441","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2789-9760","authenticated-orcid":true,"given":"Alexei 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