ArticleBioMed research international2015
A Population-Based Model to Consider the Effect of Seasonal Variation on Serum 25(OH)D and Vitamin D Status.
Article in BioMed research international, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.
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Who cites it
11 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Guideline
- Vitamin D status in the active duty Navy military personnel: protocol for a systematic review.BMJ open · 2022Article
- Comparison of four routinely used vitamin D automated immunoassays.Journal of medical biochemistry · 2021Article
- Strengthening the immunity of the Swiss population with micronutrients: A narrative review and call for action.Clinical nutrition ESPEN · 2021Review
- Recommendations on the measurement and the clinical use of vitamin D metabolites and vitamin D binding protein - A position paper from the IFCC Committee on bone metabolism.Clinica chimica acta; international journal of clinical chemistry · 2021Review
- Variable Thresholds of Vitamin D Plasma Levels to Suppress PTH: the Effect of Weight and Bariatric Surgery.Obesity surgery · 2020Article
- Circulating 25-Hydroxyvitamin D Concentrations in Overweight and Obese Adults Are Explained by Sun Exposure, Skin Reflectance, and Body Composition.Current developments in nutrition · 2019Article
- Vitamin D levels and parathyroid hormone variations of children living in a subtropical climate: a data mining study.Italian journal of pediatrics · 2018Article
- Concerning the vitamin D reference range: pre-analytical and analytical variability of vitamin D measurement.Biochemia medica · 2017Review
- Impact of season and different vitamin D thresholds on prevalence of vitamin D deficiency in epidemiological cohorts-a note of caution.Endocrine · 2017Article
- Analysis of Changes in Parathyroid Hormone and 25 (OH) Vitamin D Levels with Respect to Age, Gender and Season: A Data Mining Study.Journal of medical biochemistry · 2017Article
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Authors and funding
13 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundWe elaborated a model that predicts the centiles of the 25(OH)D distribution taking into account seasonal variation.
methodsData from two Swiss population-based studies were used to generate (CoLaus) and validate (Bus Santé) the model. Serum 25(OH)D was measured by ultra high pressure LC-MS/MS and immunoassay. Linear regression models on square-root transformed 25(OH)D values were used to predict centiles of the 25(OH)D distribution. Distribution functions of the observations from the replication set predicted with the model were inspected to assess replication.
resultsOverall, 4,912 and 2,537 Caucasians were included in original and replication sets, respectively. Mean (SD) 25(OH)D, age, BMI, and % of men were 47.5 (22.1) nmol/L, 49.8 (8.5) years, 25.6 (4.1) kg/m(2), and 49.3% in the original study. The best model included gender, BMI, and sin-cos functions of measurement day. Sex- and BMI-specific 25(OH)D centile curves as a function of measurement date were generated. The model estimates any centile of the 25(OH)D distribution for given values of sex, BMI, and date and the quantile corresponding to a 25(OH)D measurement.
conclusionsWe generated and validated centile curves of 25(OH)D in the general adult Caucasian population. These curves can help rank vitamin D centile independently of when 25(OH)D is measured.
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