ArticlePRiMER (Leawood, Kan.)2025
Global Trends in Vitamin D Research From 1985 to 2024.
Article in PRiMER (Leawood, Kan.), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
1 citing paper in PubMed.
- Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Introduction: Despite the importance of vitamin D, the number of vitamin D-related research publications has declined since 2020. This study examines trends in vitamin D-related research and National Institutes of Health (NIH) funding over 4 decades. Methods: We conducted a PubMed search using medical subject headings terms to identify vitamin D-related papers published between 1985 and 2024. NIH funding data were from NIH Reporter; statistical significance was determined using negative binomial regression. Results: Vitamin D-related publications rose steadily from 1985 to 2000, surged from 2008 to 2021, peaked at 6,019 in 2021, and then declined. A similar trend was seen in research on vitamin D-associated diseases. NIH funding for vitamin D research peaked at $52.4 million in 2013 but decreased to $10.5 million by 2024. A negative binomial regression showed a significant difference in publication rates ( Conclusions: Vitamin D research output surged through 2014 but has since lost momentum, declining from its 2021 peak and showing no significant annual growth from 2015 to 2024 (
Identifiers
What Socratic holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.