ArticleEuropean journal of nutrition2019
Evidence of a significant vitamin D deficiency among 9-13-year-old Polish children: results of a multicentre study.
Article in European journal of nutrition, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed, 34 citations in OpenAlex.
- Vitamin D status and intake in early school-aged children is tracking from pregnancy-the Swedish GraviD-Child study.BMC pediatrics · 2026Article
- An Observational Study of the Role of Adiponectin and Vitamin D in Pediatric Asthma and Obesity.Children (Basel, Switzerland) · 2026Article
- Vitamin D Receptor Polymorphisms and Immunological Effects of Vitamin D in Hashimoto's Thyroiditis.International journal of molecular sciences · 2025Review
- Diet Quality and Nutrient Adequacy Among Polish Children: Findings from the PITNUTS 2024 Study.Nutrients · 2025Article
- Physiologically Based Pharmacokinetic Modelling of Serum 25-Hydroxyvitamin D Concentrations in Schoolchildren Receiving Weekly Oral Vitamin DNutrients · 2025Article
- Seasonal Variation in Type 1 Diabetes Incidence in Poland: Exploring the Impact of Viral Infections, Including COVID-19.Pediatric diabetes · 2025Article
- Vitamin D Status among 2-18-Year-Old Romanian Pediatric Patients: A Single-Center Study.Nutrients · 2024Article
- Long-term ultraviolet B irradiation at 297 nm with light-emitting diode improves bone health via vitamin D regulation.Biomedical optics express · 2024Article
- The Power of Vitamin D: Is the Future in Precision Nutrition through Personalized Supplementation Plans?Nutrients · 2024Review
- Adipokines, Vitamin D, and Selected Inflammatory Biomarkers among Parkinson's Disease Patients with and without Dyskinesia: A Preliminary Examination.Metabolites · 2024Article
- Vitamin D status in healthy Italian school-age children: a single-center cross-sectional study.Italian journal of pediatrics · 2023Article
- Guidelines for Preventing and Treating Vitamin D Deficiency: A 2023 Update in Poland.Nutrients · 2023Review
- Nutritional Imbalances in Polish Children with Coeliac Disease on a Strict Gluten-Free Diet.Nutrients · 2022Article
- The association between vitamin D deficiency and metabolic syndrome in Ukrainian adolescents with overweight and obesity.Annals of pediatric endocrinology & metabolism · 2022Article
- Article
- The effects of season (spring versus autumn) on diagnosis of normocalcemic primary hyperparathyroidism.Frontiers in endocrinology · 2022Article
- Effect of Summer Sunshine Exposure on Vitamin D Status in Young and Middle Age Poles: Is 30 ng/mL Vitamin D Cut-Off Really Suitable for the Polish Population?International journal of environmental research and public health · 2021Article
- 25(OH)D Concentration in Neonates, Infants, and Toddlers From Poland-Evaluation of Trends During Years 1981-2011.Frontiers in endocrinology · 2018Article
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Authors and funding
12 authors at 7 institutions in 1 country.
Funding
Abstract
purposeTo evaluate the extent to which the population of Polish preadolescents is vitamin D deficient and to assess seasonal variations in vitamin D status. PARTICIPANTS AND
methodsA total of 720 healthy children aged 9-13 years (409 girls, 311 boys) residing in 6 representative geographical locations in Poland were studied. A parental-assisted questionnaire provided data on nutritional habits, vitamin D supplements and sun exposure. Serum concentration of 25-hydroxyvitamin was determined twice, after the winter in March and after the summer in October.
resultsIn March, vitamin D deficiency (25-50 nmol/L) was found in 64%, and severe deficiency (< 25 nmol/L) in 20.2% of children. In October, the deficiency and severe deficiency were still noticed in 25.9 and 0.1% of children, respectively. The mean serum concentration of 25-OHD was 52% higher in October (55.4 ± 14.0 nmol/L) than in March (36.4 ± 13.5 nmol/L), (p < 0.01). In children with 25-OHD < 50 nmol/L in March, their 25-OHD concentration increased by 64% through March to October (32.5 ± 8.2 vs. 53.2 ± 7.9 nmol/L, p < 0.01). An association was found between 25-OHD concentration and regular consumption of vitamin D supplements, cod-liver oil and fish.
conclusionsThe majority of preadolescent Polish boys and girls show vitamin D deficiency after the winter period, although a distinct amelioration over summertime is found in this age group. There is a need to implement effective prevention and intervention strategies in the management of vitamin D deficiency among schoolchildren in Poland, with the supplementation throughout the entire year.
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