Evidence map›Paper›PMID 29580303›Full record

ArticlePublic health nutrition2018

Healthy changes in some cardiometabolic risk factors accompany the higher summertime serum 25-hydroxyvitamin D concentrations in Iranian children: National Food and Nutrition Surveillance.

Bahareh Nikooyeh, Zahra Abdollahi, Majid Hajifaraji, Hamid Alavi-Majd, Forouzan Salehi, Amir Hossein Yarparvar, Tirang R Neyestani

Abstract readEvaluation Study
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 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–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

6 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors.

Bahareh Nikooyeh1Laboratory of Nutrition Research,National Nutrition and Food Technology Research Institute, Faculty of Nutrition Sciences and Food Technology,Shahid Beheshti University of Medical Sciences,PO Box 19395-4741, Tehran,Islamic Republic of Iran.
Zahra Abdollahi2Department of Biostatistics,Shahid Beheshti University of Medical Sciences,Tehran,Islamic Republic of Iran.
Majid Hajifaraji3Department of Nutritional Policy-Making Research,National Nutrition and Food Technology Research Instituteand Faculty of Nutrition Sciences and Food Technology,Shahid Beheshti University of Medical Sciences,Tehran,Islamic Republic of Iran.
Hamid Alavi-Majd2Department of Biostatistics,Shahid Beheshti University of Medical Sciences,Tehran,Islamic Republic of Iran.
Forouzan Salehi4Nutrition Office,Iran Ministry of Health,Treatment and Medical Education,Tehran,Islamic Republic of Iran.
Amir Hossein Yarparvar5UNICEF Office,Tehran,Islamic Republic of Iran.
Tirang R Neyestani1Laboratory of Nutrition Research,National Nutrition and Food Technology Research Institute, Faculty of Nutrition Sciences and Food Technology,Shahid Beheshti University of Medical Sciences,PO Box 19395-4741, Tehran,Islamic Republic of Iran.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo investigate seasonal variations of vitamin D status at different latitudes and if these changes are accompanied by corresponding variations in certain health parameters in children living in a broad latitudinal range in Iran.

designLongitudinal study. SUBJECTS: In total, 530 apparently healthy children aged 5-18 years were randomly selected from six regions of Iran with a latitudinal gradient from 29°N to 37·5°N. All anthropometric and biochemical assessments were performed twice during a year (summer, winter). High BMI (Z-score >1), low HDL cholesterol (150 mg/dl) were considered cardiometabolic risk factors.

resultsSerum 25-hydroxyvitamin D (25(OH)D) showed between-season variation, with significantly higher concentrations (mean (sd)) in summer v. winter (43 (29) v. 27 (18) nmol/l; P33°N v. <33°N: 4·5; 0·09, 9·0; P=0·04) were predictors of change of serum 25(OH)D between two seasons.

conclusionsSummertime improvement of vitamin D status was accompanied by certain improved cardiometabolic risk factors, notably serum TAG, total cholesterol and BMI, in children.

Indexed as

Population SurveillanceSeasonsAdolescentBody Mass IndexCardiovascular DiseasesChildCholesterolFemaleHumansIranLongitudinal StudiesMaleRisk FactorsVitamin DVitamin D Deficiency25-hydroxyvitamin DCholesterolVitamin DCardiometabolic risk factorsSeasonal variationVitamin D

Identifiers

PMID29580303
PMCPMC10260915

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.