Clin Exp Emerg Med. 2025 Dec 02.
Objective: Despite disparities in availability and quality of emergency care, the extent to which countries with different incomes participate in emergency medicine (EM) research remains understudied. This study evaluated academic productivity in the EM field depending on country income.
Methods: Research published in Scopus-indexed journals of the EM subject area since 2004 was analysed quantitatively. Publication, citation, journal impact, and national socioeconomic data were compared. Automated topic modelling was applied using a latent Dirichlet allocation model.
Results: The analysis included 154,458 publications (89.7% in English) from 177 countries, which received 1,817,635 citations. High-income countries (HIC) outperformed upper-middle-income (UMIC), lower-middle-income (LMIC), and low-income countries (LIC) 11, 41, and 72 fold, respectively, by the weighted (per million population per country) number of publications, and 21, 54, and 171 fold, respectively, by the weighted count of citations. The annual number of publications was predicted to considerably rise for HIC, in less extent for UMIC, and far less for LMIC, but not for LIC. Research productivity showed a significant relationship with national socioeconomic indicators. Based on the topic modelling, HIC paid relatively higher attention to advancements in resuscitation, whereas lower income countries were more focused on injuries.
Conclusion: While global research productivity for EM is progressively rising, lower income countries lag far behind high-income ones. Countries with different incomes have distinct priorities in EM research. 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.
Keywords: Emergencies; Emergency Medicine; Global Health; Research; Resource-Limited Settings