Evidence map›Paper›PMID 26051113›Full record

ArticlePublic health nutrition2017

Vitamin D deficiency and its associated risk factors in children and adolescents in southern Iran.

Forough Saki, Mohammad Hossein Dabbaghmanesh, Gholamhossein Ranjbar Omrani, Marzieh Bakhshayeshkaram

Abstract read
In one paragraph

Article in Public health nutrition, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing 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

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

  1. Effect of Vitamin D Supplementation onFrontiers in endocrinology · 2022
    Pooled it
  2. Effect of Cholecalciferol therapy on serum FGFJournal of endocrinological investigation · 2018
    Trial
  3. Trial
  4. Article
  5. Article
  6. Article
  7. New concepts in regulation and function of the FGF23.Clinical and experimental medicine · 2023
    Review
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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

4 authors.

Forough SakiShiraz Endocrinology and Metabolism Research Center,Nemazee Hospital,Shiraz University of Medical Sciences,PO Box 71345-1744,Shiraz,Islamic Republic of Iran.
Mohammad Hossein DabbaghmaneshShiraz Endocrinology and Metabolism Research Center,Nemazee Hospital,Shiraz University of Medical Sciences,PO Box 71345-1744,Shiraz,Islamic Republic of Iran.
Gholamhossein Ranjbar OmraniShiraz Endocrinology and Metabolism Research Center,Nemazee Hospital,Shiraz University of Medical Sciences,PO Box 71345-1744,Shiraz,Islamic Republic of Iran.
Marzieh BakhshayeshkaramShiraz Endocrinology and Metabolism Research Center,Nemazee Hospital,Shiraz University of Medical Sciences,PO Box 71345-1744,Shiraz,Islamic Republic of Iran.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo evaluate prevalence of vitamin D deficiency and its associated factors in southern Iranian children.

designCross-sectional study. Anthropometric and pubertal characteristics were assessed by a trained physician. Physical activity and sun exposure were evaluated using standard questionnaires. Body composition measurements were performed using dual-energy X-ray absorptiometry. Serum Ca, P alkaline phosphatase and 25-hydroxyvitamin D (25(OH)D) were assessed in all children. Statistical analysis was done using the statistical software package IBM SPSS Statistics 18·0. SUBJECTS: Iranian children (n 477) aged 9-18 years.

settingFars Province, Iran, 2011.

resultsOf the children, 81·3 % were 25(OH)D deficient. There was no significant difference in 25(OH)D concentration between boys and girls (P=0·3). 25(OH)D concentration was associated with BMI (r=-0·1, P=0·02), pubertal status (r=-0·08, P=0·04) and sun exposure (r=0·10, P=0·04). Fat mass index was associated with 25(OH)D concentration (r=-0·13, P=0·03), but not lean mass index (P=0·86). In multiple regression analysis with adjustment for confounding factors, age and puberty were found to be independently associated with 25(OH)D concentration (P=0·008 and P=0·006); there was a significant correlation between exercise and 25(OH)D concentration after adjustment for either BMI (P=0·01) or fat mass index (P=0·02).

conclusions25(OH)D deficiency is highly prevalent among children in the south of Iran. It is related to insufficient sun exposure, low physical activity, advancing age and pubertal stage. Measures should be taken to improve the health of southern Iranian children in this critical age group by preventing 25(OH)D deficiency.

Indexed as

AdolescentAge FactorsChildCross-Sectional StudiesExerciseFemaleHumansIranMalePrevalenceRisk FactorsSex FactorsSexual MaturationVitamin DVitamin D Deficiency25-hydroxyvitamin DVitamin DExercisePubertyRisk factorsSun exposureVitamin D

Identifiers

PMID26051113
PMCPMC10261289

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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.