ArticleBMJ open2022
Association between serum vitamin D levels and
Article in BMJ open, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
What it found
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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
4 citing papers in PubMed, 4 citations in OpenAlex.
- Vitamin D Level in Blood Serum and Its Connection with Helicobacter pylori Infection: A Systematic Review.Cureus · 2026Review
- Correlation between dietary vitamin B2 intake and helicobacter pylori infection in US adults: a cross-sectional study.Journal of health, population, and nutrition · 2025Article
- The reverse association between riboflavin intake and Helicobacter pylori infection in US adults: A cross-sectional study.PloS one · 2025Article
- Vitamin D and Its Association withNutrients · 2023Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo assess the association of serum vitamin D (VD) levels and
designCross-sectional study.
settingData from phase I of the National Health and Nutrition Examination Survey (NHANES III, 1988-1991) led by the Center for Disease Control and Prevention.
participantsA total of 3512 US adults (≥20 years) with both serum VD levels and
methodsVD deficiency was defined as serum 25(OH)D concentrations<20 ng/mL. Logistic regression models were used to assess the association of serum VD levels and
resultsThere was no significant association of VD-
conclusionsRacial/ethnic differences and different serum ferritin or serum folate levels may be effect modifiers for the association of VD-
Indexed as
Identifiers
What OpenQuestion 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 OpenQuestion graph.