Evidence map›Paper›PMID 25690868›Full record

ArticleEuropean journal of clinical nutrition2015

Determinants of vitamin D deficiency among undergraduate medical students in Saudi Arabia.

A A BinSaeed, A A Torchyan, B N AlOmair, N S AlQadhib, F M AlSuwayeh, F M Monshi, F I AlRumaih, S A AlQahtani, N AlYousefi, A Al-Drees

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Article in European journal of clinical nutrition, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.4field-weighted citation impact, top 12% 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

17 citing papers in PubMed, 26 citations in OpenAlex.

  1. Review
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  5. Article
  6. Hidden Hunger of Vitamin E among Healthy College Students: A Cross- Sectional Study.Endocrine, metabolic & immune disorders drug targets · 2021
    Article
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  10. Impact of Nutritional and Environmental Factors on Vitamin D DeficiencyAsian Pacific journal of cancer prevention : APJCP · 2018
    Article
  11. Vitamin D and orthodontics: an insight review.Clinical, cosmetic and investigational dentistry · 2018
    Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
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

10 authors at 1 institution in 1 country.

A A BinSaeedPrince Sattam Bin Abdul Aziz Research Chair of Epidemiology and Public Health, College of Medicine, King Saud University, Riyadh, Saudi Arabia.
A A TorchyanPrince Sattam Bin Abdul Aziz Research Chair of Epidemiology and Public Health, College of Medicine, King Saud University, Riyadh, Saudi Arabia.
B N AlOmairDepartment of Family and Community Medicine, College of Medicine, King Saud University, Riyadh, Saudi Arabia.
N S AlQadhibDepartment of Family and Community Medicine, College of Medicine, King Saud University, Riyadh, Saudi Arabia.
F M AlSuwayehDepartment of Family and Community Medicine, College of Medicine, King Saud University, Riyadh, Saudi Arabia.
F M MonshiDepartment of Family and Community Medicine, College of Medicine, King Saud University, Riyadh, Saudi Arabia.
F I AlRumaihDepartment of Family and Community Medicine, College of Medicine, King Saud University, Riyadh, Saudi Arabia.
S A AlQahtaniDepartment of Family and Community Medicine, College of Medicine, King Saud University, Riyadh, Saudi Arabia.
N AlYousefiDepartment of Family and Community Medicine, College of Medicine, King Saud University, Riyadh, Saudi Arabia.
A Al-DreesDepartment of Physiology, College of Medicine, King Saud University, Riyadh, Saudi Arabia.
King Saud University · SA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND/

objectivesThe objectives of our study were to determine possible factors associated with low vitamin D levels in medical students. SUBJECTS/

methodsA cross-sectional study was performed among 255 first- to fifth-year male undergraduate medical students of one of the major universities in Saudi Arabia. Serum 25-hydroxyvitamin D (25(OH)D) levels were measured using electrochemiluminiscence. Multiple logistic regression analysis was performed.

resultsMajority of Saudi medical students (75.2%) had 25(OH)D levels <30 nmol/l, defined as risk for deficiency by the Institute of Medicine. Multivariate analysis showed that the odds of having 25(OH)D serum levels of ⩾ 30 nmol/l were seven times higher both in students who took vitamin D (odds ratio (OR)=7.2, 95% confidence interval (CI)=1.8-29.9, P=0.006) or multivitamin supplements (OR=6.9, 95% CI=1.7-27.3, P=0.006) within 1 year. Students with a history of vitamin D testing >1 year before the study or moderate/vigorous physical activity (PA) had 4.4 (OR=4.4, 95% CI=1.7-11.4, P=0.003) and 2.7-fold (OR=2.7, 95% CI=1.3-5.3, P=0.006) higher odds of having 25(OH)D levels ⩾ 30 nmol/l, respectively. There was no significant association between 25(OH)D serum levels and average time spent outdoors per day (P=0.369) and type of clothing (long-sleeved vs short-sleeved; P=0.800).

conclusionsVitamin D deficiency was highly prevalent in Saudi medical students. Modifiable factors such as vitamin D intake and PA could be targeted for intervention. Further studies with standardized laboratory measurements of 25(OH)D are needed to explore the role of vitamin D testing in behavioral change, which may lead to increased serum 25(OH)D levels.

Indexed as

ExerciseStudents, MedicalAdultCross-Sectional StudiesDietary SupplementsHumansLogistic ModelsMaleOdds RatioPrevalenceRisk FactorsSaudi ArabiaVitamin DVitamin D DeficiencyYoung Adult25-hydroxyvitamin DVitamin D

Identifiers

PMID25690868
OpenAlexW1999371334

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.