ArticleEuropean journal of clinical nutrition2018
Distribution and determinants of retinol in Norwegian adolescents, and its relation to bone mineral density: the Tromsø Study: Fit Futures.
Article in European journal of clinical nutrition, 2018. 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.
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Who cites it
4 citing papers in PubMed, 5 citations in OpenAlex.
- Association between serum vitamin A and bone mineral density in adolescents.Scientific reports · 2025Article
- Association between composite dietary antioxidant and bone mineral density in children and adolescents aged 8-19 years: findings from NHANES.Scientific reports · 2024Article
- Are pro-inflammatory markers associated with psychological distress in a cross-sectional study of healthy adolescents 15-17 years of age? The Fit Futures study.BMC psychology · 2022Article
- C-Reactive Protein and TGF-α Predict Psychological Distress at Two Years of Follow-Up in Healthy Adolescent Boys: The Fit Futures Study.Frontiers in psychology · 2022Article
Corrections and comments
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND/
objectivesSufficient vitamin A levels are important for many functions-and both too little and too much may have detrimental health effects. The aim of the study was to describe the distribution of retinol levels in Norwegian adolescents, the relation between lifestyle factors and retinol levels, and the relation between retinol levels and bone mineral density (BMD). SUBJECTS/
methodsSerum retinol was measured in 414 girls and 474 boys aged 15-19 years, participating in the Tromsø Study: Fit Futures. Questionnaires regarding health and lifestyle factors were filled in, and physical examinations, body composition, and bone mineral density measurements (DEXA) performed. Multiple regression analyses were used to discover associations between retinol and exposure variables.
resultsRetinol levels ranged from 0.26 to 6.46 μmol/L with a median (2.5-97.5 percentile) of 2.35 (1.01-4.67) μmol/L. There was no gender difference. In the multivariate models, fat mass, albumin level, physical activity, and lunch habits were positively associated with retinol levels in boys. In girls, fat mass and height were negatively associated with retinol levels, and lean mass, vitamin D, calcium, total cholesterol, and the use of contraceptives were positively associated with retinol levels (p < 0.05). The models explained 18.3% and 14.6% of the variation (R
conclusionRetinol levels in Norwegian adolescents are higher than reported elsewhere, and are to a low degree explained by lifestyle and physical measurements. No independent association with BMD was found.
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Registered trials
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