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Cited by 6scientometrics and bibliometrics researchPsychology Research and BibliometricsHealth and Medical Research Impacts

Global Academic Productivity in the Field of Internal Medicine and Its Correlation to National Economic Indicators: A Bibliometric Analysis of 24 Years

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Lerman, Tsahi T., Fishman, Boris, Reitblat, Olga, Reitblat, Tatiana, Goldberg, Elad, Krause, Ilan·2021·The American Journal of the Medical Sciences
DOI 10.1016/j.amjms.2021.05.015
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Abstract

BACKGROUND: Previous studies have demonstrated a correlation between national economic indicators and academic productivity. However, such a relationship has not been studied in the field of internal medicine (IM). METHODS: The number of documents published, number of citable documents, number of citations, citations per document and the h index between 1996 and 2019 in the field of IM among the Organisation for Economic Co-operation and Development (OECD) countries were analysed. Data were derived from the The Scimago Journal and Country rank source. We analysed the correlation between these indicators to the gross domestic product (GDP) per capita, health spending as percent of GDP and gross domestic expenditure on research and development as percent of GDP (GERD). Economic data were collected from the OECD websites. RESULTS: A significant correlation was found between health expenditure and h index (r = 0.75, P < 0.001), number of citations (r = 0.72, P < 0.001), number of documents (r = 0.62, P < 0.001) and number of citable documents (r = 0.61, P < 0.001); between GERD and number of citations (r = 0.6, P < 0.001), h index (r = 0.6, P < 0.001), number of documents published (r = 0.53, P = 0.001) and citable documents (r = 0.51, P = 0.001); between the GDP per capita and number of citations (r = 0.46, P = 0.005), citations per document (r = 0.54, P = 0.001) and h index (r = 0.5, P = 0.002). CONCLUSIONS: This study demonstrated a positive correlation between academic productivity in the field of IM and economic indicators of the OECD countries, mainly health expenditure, implying the advantage of domestic investment in health.

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  • The productivity of biomedical research worldwide largely depends on each country's gross national product per capita and expenditures allocated to research and development.

    “Studies have shown that the productivity of biomedical research worldwide largely depends on each country’s gross national product per capita and expenditures allocated to research and development 23 , 24 .”

    From Global mapping of randomized controlled trials in dentistry (2024) · cites this paper as [24]

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Authors
Lerman, T. T., Fishman, B., Reitblat, O., Reitblat, T., Goldberg, E., & Krause, I.
Affiliations
  • Tel Aviv University (IL)
  • Ben-Gurion University of the Negev (IL)
Corresponding author
Lerman, Tsahi T.
ORCID
Venue
The American Journal of the Medical Sciences
Publisher
Elsevier BV
Published
2021-11
Volume
362
Issue
5
Pages
480-485
ISSN
0002-9629 (ISSN-L)
DOI
10.1016/j.amjms.2021.05.015
OpenAlex
W3164258325
Cited by
6
References
22
Citations by year
2026: 2 · 2025: 1 · 2024: 3
FWCI
0.43
Type
journal article
Language
en
Open access
Licence
Locations
  • The American Journal of the Medical Sciences (publishedVersion, cc-by-nc-sa)
  • PubMed (publishedVersion)
Topics
  • Social Sciences › Decision Sciences › Statistics, Probability and Uncertainty › scientometrics and bibliometrics research
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Psychology Research and Bibliometrics
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Health and Medical Research Impacts
Keywords
internal medicine, academic productivity, national economic indicators, GDP per capita, health care costs, R&D investment, h-index, citation analysis, OECD countries, bibliometric analysis
MeSH terms
Health Expenditures, Humans, Internal Medicine, Bibliometrics, Gross Domestic Product

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