ArticleAllergy, asthma & immunology research2013
The effect of vitamin d status on pediatric asthma at a university hospital, Thailand.
Article in Allergy, asthma & immunology research, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01432678 (Vitamin D Status in Pediatric Asthma), which is not on this map. Cited by 15 papers, 3 of them syntheses that pooled it.
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.
Vitamin D Status in Pediatric Asthma
Who cites it
15 citing papers in PubMed, 3 syntheses or guidelines pooled it, 50 citations in OpenAlex.
- The Role of Vitamin D in Severity and Control of Asthma in Children and Adolescents: A Systematic Review and Meta-Analysis.Pediatric pulmonology · 2026Pooled it
- The serum level of vitamin D and prevalence of vitamin D deficiency among children with asthma in Asia and Africa: a systematic review and meta-analysis.Archives of public health = Archives belges de sante publique · 2024Pooled it
- Meta-analysis of vitamin D and lung function in patients with asthma.Respiratory research · 2019Pooled it
- Vitamin D status among Thai school children and the association with 1,25-Dihydroxyvitamin D and parathyroid hormone levels.PloS one · 2014Trial
- Micronutrients and the Risk of Allergic Diseases in School Children.International journal of environmental research and public health · 2022Article
- Association of 25-hydroxy vitamin D with asthma and its severity in children: a case-control study.Clinical and molecular allergy : CMA · 2020Article
- Serum Vitamin D Levels and Vitamin D Supplement in Adult Patients with Asthma Exacerbation.Journal of allergy · 2016Article
- Hypovitaminosis D in healthy children in Central Thailand: prevalence and risk factors.BMC public health · 2015Article
- Association of vitamin D receptor gene polymorphisms and vitamin D levels with asthma and atopy in Cypriot adolescents: a case-control study.Multidisciplinary respiratory medicine · 2015Article
- Vitamin d levels in children with bronchial asthma.Journal of clinical and diagnostic research : JCDR · 2014Article
- Vitamin D in inflammatory diseases.Frontiers in physiology · 2014Review
- Association between 25-hydroxy vitamin D and lung function (FEV1, FVC, FEV1/FVC) in children and adults with asthma: A systematic review.Lung India : official organ of Indian Chest SocietyArticle
- Vitamin D and asthma in children: A systematic review and meta-analysis of observational studies.Lung India : official organ of Indian Chest SocietyReview
- Pediatric Asthma Control: A Focus on Vitamin D Serum Levels in Moroccan Children.Sage open pediatricsArticle
- The Role of Vitamin D in Pediatric Asthma.Annals of pediatrics & child healthArticle
Corrections and comments
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeIn the USA and Europe, hypovitaminosis D is associated with increased asthma severity, emergency department (ED) visit, and impaired pulmonary function in asthmatic patients. However, in tropical countries, data on the effect of vitamin D status on asthma is limited. This study evaluates the relationship between vitamin D status and the level of asthma control as well as other asthmatic parameters.
methodsAsthmatic children were evaluated for serum 25-hydroxyvitamin D, pulmonary function tests, a skin prick test, and the level of asthma control.
resultsA total of 125 asthmatic children were recruited (boys, 66.4%). Their mean age±SD was 10.8±3.0 years. Vitamin D statuses were: deficiency (<20 ng/mL) in 19.2% of the patients, insufficiency (20-30 ng/mL) in 44.8%, and sufficiency (>30 ng/mL) in 36%. The vitamin D levels were 25.9±9.4 ng/mL in uncontrolled patients, 29.2±8.6 ng/mL in partly controlled patients, and 27.9±8.0 ng/mL in controlled patients (P>0.05). There were no significant differences in pulmonary function, asthma exacerbation, inhaled-corticosteroid (ICS) dose, anti-inflammatory drugs, or ED visit or hospitalization between different vitamin D statuses. Vitamin D deficiency patients were older and had a delayed onset of asthma than insufficiency or sufficiency patients. There was no significant correlation between serum vitamin D and pulmonary function/doses of ICS.
conclusionsHigh prevalences of vitamin D deficiency and insufficiency were found in asthmatic children in Thailand; however, there was no significant relationship between vitamin D status and the level of asthma control or other asthma parameters.
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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.