Evidence map›Paper›PMID 30189911›Full record

ArticlePublic health nutrition2018

Sun behaviour and physical activity associated with autumn vitamin D status in 4-8-year-old Danish children.

Charlotte Mortensen, Christian Mølgaard, Hanne Hauger, Michael Kristensen, Camilla T Damsgaard

Abstract read
In one paragraph

Article in Public health nutrition, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

8 citing papers in PubMed, 1 synthesis or guideline pooled it.

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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.

Charlotte Mortensen1Department of Nutrition, Exercise and Sports, Faculty of Science,University of Copenhagen,Rolighedsvej 26,1958 Frederiksberg C,Denmark.ORCID 0000-0003-4965-4331
Christian Mølgaard1Department of Nutrition, Exercise and Sports, Faculty of Science,University of Copenhagen,Rolighedsvej 26,1958 Frederiksberg C,Denmark.
Hanne Hauger1Department of Nutrition, Exercise and Sports, Faculty of Science,University of Copenhagen,Rolighedsvej 26,1958 Frederiksberg C,Denmark.
Michael Kristensen2Department of Nursing and Nutrition, Faculty of Health,University College Copenhagen,Copenhagen,Denmark.
Camilla T Damsgaard1Department of Nutrition, Exercise and Sports, Faculty of Science,University of Copenhagen,Rolighedsvej 26,1958 Frederiksberg C,Denmark.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo explore determinants of serum 25-hydroxyvitamin D (s-25(OH)D) during autumn in young, Caucasian children not consuming vitamin D-fortified foods or supplements, and explore differences in sun behaviours between pre-school and school children.

designIn September-October, s-25(OH)D was measured by LC-MS/MS; physical activity, sun behaviours and vitamin D intake were assessed with questionnaires.

settingBaseline data from the ODIN Junior trial at 55°N. SUBJECTS: Children aged 4-8 years (n 130), of whom 96% gave blood samples.

resultsMean s-25(OH)D was 56·8 (sd 12·5) nmol/l and positively associated with fat-free mass index (P=0·014). Children being active 6-7 h/week had 5·6 (95% CI 1·1, 10·0) nmol/l higher s-25(OH)D than less active children (P=0·014). Children seeking shade sometimes or rarely/never had 7·0 (95% CI 1·2, 12·9; P=0·018) and 7·2 (95% CI 0·8, 13·6; P=0·028) nmol/l higher s-25(OH)D, respectively, than children always/often seeking shade. Pre-school children had more sun-safe behaviour than school children in terms of use of a hat, sunscreen and sunscreen sun protection factor (P<0·05). In school but not pre-school children, using a hat rarely/never was associated with 12·1 (95% CI 2·5, 21·7; P=0·014) nmol/l higher s-25(OH)D v. always/often (P interaction=0·019). Vitamin D intake was not associated with s-25(OH)D (P=0·241).

conclusionsPhysical activity and sun behaviours are associated with s-25(OH)D in young children. Identifying factors influencing autumn s-25(OH)D is relevant to optimize levels before sun exposure diminishes. Strategies to reduce risk of inadequacy should consider risk of skin cancer and sunburn, and could include fortification and/or vitamin D supplementation.

Indexed as

Child BehaviorExerciseProtective ClothingSeasonsSunscreening AgentsVitamin D DeficiencyAdipose TissueChildChild, PreschoolDenmarkFemaleHealth StatusHumansMaleNutritional StatusSchools25-hydroxyvitamin DSunscreening AgentsVitamin DChildrenNorthern latitudePhysical activitySun behaviourVitamin D

Identifiers

PMID30189911
PMCPMC10261082

What OpenQuestion holds

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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.