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Maps of where Vitamin D studies are published and keywords used – Jan 2018

World-wide research architecture of vitamin D research: density-equalizing mapping studies and socio-economic analysis

Nutrition Journal 201817:3, https://doi.org/10.1186/s12937-018-0313-6
Dörthe Brüggmann, Annahita Alafi, Jenny Jaque, Doris Klingelhöfer, Michael H. Bendels, Daniela Ohlendorf, David Quarcoo, Frank Louwen, Sue A. Ingles, Eileen M. Wanke† and David A. Groneberg†. †Contributed equally

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Studies published per country


Studies published per population


Keyword used >17 times


Despite the numerous associations of vitamin D with health and disease, vitamin D deficiency is still common from a global perspective. While basic research, clinical and preventive activities grow constantly in vitamin D research, there is no in-depth analysis of the related global scientific productivity available so far.

Methods: Density equalizing mapping procedures (DEMP) were combined with socioeconomic benchmarks using the NewQIS platform.

A total of 25,992 vitamin D-related research articles were identified between 1900 to 2014 with a significant increase (r2 = .6541) from 1900 to 2014. Authors located in Northern America – especially in the USA – distributed the majority of global vitamin D research, followed by their Western European counterparts. DEMP-analysis illustrates that Africa and South America exhibit only minor scientific productivity. Among high-income group countries, Scandinavian nations such as Denmark or Finland (2147.9 and 1607.7 vitamin D articles per GDP in 1000 billion USD) were highly active with regard to socioeconomic figures.

Networks dedicated to vitamin D research are present around the world. Overall, the Northern American and Western European nations occupy prominent positions. However, South American, African and Asian countries apart from Japan only play a minor role in the global research production related to vitamin D. Since vitamin D deficiency is currently increasing in the Americas, Europe and parts of the Middle East, research in these regions may need to be encouraged.

Created by admin. Last Modification: Monday October 29, 2018 23:12:00 GMT-0000 by admin. (Version 6)

Attached files

ID Name Comment Uploaded Size Downloads
10738 Keywords.jpg admin 26 Oct, 2018 10:54 57.32 Kb 2382
10737 number of studies vs population.jpg admin 26 Oct, 2018 10:54 59.79 Kb 455
10736 Number of studies.jpg admin 26 Oct, 2018 10:53 57.27 Kb 650
10735 Vitamin D publishing maps.pdf PDF 2018 admin 26 Oct, 2018 10:53 2.39 Mb 494
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