ArticleNutrients2021
Vitamin D Status in Adolescents during COVID-19 Pandemic: A Cross-Sectional Comparative Study.
Article in Nutrients, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 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
14 citing papers in PubMed, 18 citations in OpenAlex.
- Maternal-infant vitamin D coupling and neonatal hypocalcemia: a six-year cohort integrating preterm risk, onset timing, and pandemic effects.BMC pediatrics · 2026Article
- Variations in vitamin D status among Chinese children aged 1-6 years during the COVID-19 pandemic.Frontiers in public health · 2025Article
- COVID-19 in Children and Vitamin D.International journal of molecular sciences · 2024Review
- Changes in vitamin D status among adults from the COVID-19 pandemic to post-pandemic normality.Frontiers in nutrition · 2024Article
- Knowledge, attitudes and practices (KAP) of medical university students towards vitamin D deficiency in Saudi Arabia: a cross-sectional study.Journal of pharmaceutical policy and practice · 2024Article
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- Vitamin D Supply of Multivitamins Commercialized Online by Amazon in Western and Southern Europe: A Labeling Analysis.Nutrients · 2023Article
- The Role of Some Vitamins in Respiratory-related Viral Infections: A Narrative Review.Clinical nutrition research · 2023Review
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- How Vitamin D Levels of Children Changed During COVID-19 Pandemic: A Comparison of Pre-pandemic and Pandemic PeriodsJournal of clinical research in pediatric endocrinology · 2022Article
- Review
- Efficacy and safety of vitamin D supplementation in hospitalized COVID-19 pediatric patients: A randomized controlled trial.Frontiers in pediatrics · 2022Article
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Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Vitamin D has been claimed to be effective in the response to infections, including the respiratory syndrome coronavirus 2 (SARS-CoV-2). It is supposed that lockdown measures and fear of SARS-CoV-2 infection might reduce vitamin D levels through the modification of lifestyle. However, very few data exist on the association between lockdown measures and vitamin D status in humans. For this cross-sectional comparative study, adolescents (
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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.