Güliz Rana TELLİOĞLU AVCI
Journal of Health Sciences and Medicine - 2026;9(2):293-300
Aims: This study aimed to compare endodontist-related Google Trends(TM) (GT) search volumes between selected G7 (United States, Canada, United Kingdom) and E7 (Turkiye, Brazil, India) countries from 2015 to 2025, and to evaluate the relationship between search interest and gross domestic product (GDP) per capita. Methods: GT search indices for the terms "endodontist" and their equivalents in each country's native language were retrieved for the period 2015-2025. Monthly search values were standardized by population and expressed as "search index per 10 million population." Annual GDP per capita and national population data were obtained from publicly available international databases. Statistical analyses included t-tests for group comparisons, one-way ANOV A with post-hoc testing for country-level differences, and Pearson correlation analysis for the association between search index and GDP per capita. A significance level of alpha=0.05 was adopted. Results: G7 countries demonstrated significantly higher standardized search volumes compared with E7 countries (mean difference: 10.82; p<0.001). Pairwise comparisons showed that all country pairs differed significantly except the United States and Brazil (p=0.899). A weak-to-moderate positive correlation was observed between search volume and GDP per capita overall (r=0.328, p=0.016). However, subgroup analysis revealed a strong positive correlation in E7 countries (r=0.855, p<0.001) and a moderate negative correlation in G7 countries (r=-0.574, p=0.002). Conclusion: Public interest in endodontists varies substantially by country and is influenced by socioeconomic status. While higher GDP per capita was associated with increased search interest in E7 countries, the opposite trend was observed in G7 nations. GT may serve as a valuable digital epidemiological tool to monitor public awareness and inform resource allocation in endodontic care.
