Trends in health literacy discussions within primary health care research: A topic analysis using machine learning
Muhammet Damar1, Andrew David Pinto2, Benita Hosseini3
1Management Information Systems, Faculty of Business Administration, Muğla Sıtkı Koçman University, Muğla, Turkey; Upstream Lab, MAP, Li Ka Shing Knowledge Institute, Unity Health Toronto, Toronto, Ontario, Canada.
Objective:
To reveal the intellectual framework, research trends, and gaps, and evaluate effective health literacy tools in the field of primary healthcare services.
Design:
Observational, machine learning-based bibliometric study. SITE: Analysis was conducted using records indexed in the Web of Science database.
Participants:
A total of 1869 researchers from 823 institutions across 54 countries contributed to the 33 journals included in the dataset.
Interventions:
Development of a bibliometric map and topic model in health literacy within primary healthcare. Bibliometric analysis was performed on review and research articles retrieved as of July 27, 2025. For each article, data on the journal, publication year, title, abstract, keywords, authors, affiliations, countries, cited sources, cited first authors, and references were collected. Latent Dirichlet Allocation topic modeling was applied to uncover thematic structures and trends in the research field.
Main Measurements:
Thematic structures, research trends, and knowledge gaps were measured through bibliometric indicators such as co-authorship networks, citation analysis, and topic modeling outputs.
Results:
Emerging topics included health equity and sustainability, medication adherence, aging, management of lifestyle factors such as physical activity and diet, management of chronic diseases, physician-patient communication, sustainable learning, sociodemographic impact, rural health interventions, responses to pandemics akin to COVID-19, and the roles of health institutions, policymakers, and leadership.
Conclusions:
Our findings highlight that health literacy is a multifaceted concept that not only enables healthier living and disease management but also prevents various severe health conditions, improving overall life quality and satisfaction with health services. The importance of sustained health literacy initiatives, effective communication, and the vested interests of both patients and healthcare professionals are highlighted, underscoring the need for ongoing commitment in this area.
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