Evidence map›Paper›PMID 30767841›Full record

ArticlePublic health nutrition2020

Vitamin D status in a multi-ethnic population of northern Norway: the SAMINOR 2 Clinical Survey.

Natalia Petrenya, Christel Lamberg-Allardt, Marita Melhus, Ann Ragnhild Broderstad, Magritt Brustad

Open access · hybridAbstract read
In one paragraph

Article in Public health nutrition, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
4.5field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 46 citations in OpenAlex.

  1. Article
  2. Vitamin D and Brain Health.Advances in experimental medicine and biology · 2026
    Review
  3. Article
  4. Article
  5. Article
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  13. Article
  14. Vitamin D and COVID-19-Revisited.Journal of internal medicine · 2022
    Review
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. Impact of vitamin D deficiency on COVID-19.Clinical nutrition ESPEN · 2021
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 2 countries.

Natalia PetrenyaDepartment of Community Medicine, Faculty of Health Sciences, UiT The Arctic University of Norway, Postboks 6050 Langnes 9037, Tromsø, Norway.
Christel Lamberg-AllardtCalcium Research Unit, Department of Food and Nutrition Sciences, University of Helsinki, Helsinki, Finland.
Marita MelhusCentre for Sami Health Research, Department of Community Medicine, UiT The Arctic University of Norway, Tromsø, Norway.
Ann Ragnhild BroderstadCentre for Sami Health Research, Department of Community Medicine, UiT The Arctic University of Norway, Tromsø, Norway.
Magritt BrustadDepartment of Community Medicine, Faculty of Health Sciences, UiT The Arctic University of Norway, Postboks 6050 Langnes 9037, Tromsø, Norway.
UiT The Arctic University of Norway · NOUniversity of Helsinki · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo investigate serum 25-hydroxyvitamin D (S-25(OH)D) concentration in a multi-ethnic population of northern Norway and determine predictors of S-25(OH)D, including Sami ethnicity.

designCross-sectional data from the second survey of the Population-based Study on Health and Living Conditions in Regions with Sami and Norwegian Populations (the SAMINOR 2 Clinical Survey, 2012-2014). S-25(OH)D was measured by the IDS-iSYS 25-Hydroxy Vitamin Dˢ assay. Daily dietary intake was assessed using an FFQ. BMI was calculated using weight and height measurements.

settingTen municipalities of northern Norway (latitude 68°-70°N).

participantsMales (n 2041) and females (n 2424) aged 40-69 years.

resultsMean S-25(OH)D in the study sample was 64·0 nmol/l and median vitamin D intake was 10·3 µg/d. The prevalence of S-25(OH)D<30 nmol/l was 1·9 % and <50 nmol/l was 24·7 %. In sex-specific multivariable linear regression models, older age, blood sample collection in September-October, solarium use, sunbathing holiday, higher alcohol intake (in females), use of cod-liver oil/fish oil supplements, use of vitamin/mineral supplements and higher intakes of vitamin D were significantly associated with higher S-25(OH)D, whereas being a current smoker and obesity were associated with lower S-25(OH)D. These factors explained 21-23 % of the variation in S-25(OH)D.

conclusionsThere were many modifiable risk factors related to S-25(OH)D, however no clear ethnic differences were found. Even in winter, the low prevalence of vitamin D deficiency found among participants with non-Sami, multi-ethnic Sami and Sami self-perceived ethnicity was likely due to adequate vitamin D intake.

Indexed as

EthnicityAdultAgedCross-Sectional StudiesDietary SupplementsFemaleHumansMaleMiddle AgedNorwayNutritional StatusRisk FactorsSeasonsSurveys and QuestionnairesVitamin DVitamin D Deficiency25-hydroxyvitamin DVitamin DVitaminsIndigenous population SamiIntake of vitamin DNorwayPredictorsSerum 25-hydroxyvitamin D concentrationVitamin D status

Identifiers

PMID30767841
PMCPMC7167379
OpenAlexW2914883921

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LicenceCC BY
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Registered trials

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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.