Evidence map›Paper›PMID 27540095›Full record

ArticleBMJ open2016

Vitamin D deficiency in Malaysian adolescents aged 13 years: findings from the Malaysian Health and Adolescents Longitudinal Research Team study (MyHeARTs).

Nabilla Al-Sadat, Hazreen Abdul Majid, Pei Ying Sim, Tin Tin Su, Maznah Dahlui, Mohd Fadzrel Abu Bakar, Najat Dzaki, Saidatul Norbaya, Liam Murray, Marie M Cantwell and 2 more

Abstract read
In one paragraph

Article in BMJ open, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 3 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

25 citing papers in PubMed, 3 syntheses or guidelines pooled it.

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  10. Vitamin D status and clinical implications in the adult population of Malaysia: a position paper by the Malaysian Vitamin D Special Interest Group.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2023
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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

12 authors.

Nabilla Al-SadatFaculty of Medicine, Centre for Population Health (CePH), University of Malaya, Kuala Lumpur, Malaysia Faculty of Medicine, Department of Social and Preventive Medicine, University of Malaya, Kuala Lumpur, Malaysia.
Hazreen Abdul MajidFaculty of Medicine, Centre for Population Health (CePH), University of Malaya, Kuala Lumpur, Malaysia Faculty of Medicine, Department of Social and Preventive Medicine, University of Malaya, Kuala Lumpur, Malaysia.
Pei Ying SimFaculty of Medicine, Centre for Population Health (CePH), University of Malaya, Kuala Lumpur, Malaysia.
Tin Tin SuFaculty of Medicine, Centre for Population Health (CePH), University of Malaya, Kuala Lumpur, Malaysia Faculty of Medicine, Department of Social and Preventive Medicine, University of Malaya, Kuala Lumpur, Malaysia.
Maznah DahluiFaculty of Medicine, Centre for Population Health (CePH), University of Malaya, Kuala Lumpur, Malaysia Faculty of Medicine, Department of Social and Preventive Medicine, University of Malaya, Kuala Lumpur, Malaysia.
Mohd Fadzrel Abu BakarFaculty of Medicine, Centre for Population Health (CePH), University of Malaya, Kuala Lumpur, Malaysia.
Najat DzakiFaculty of Medicine, Centre for Population Health (CePH), University of Malaya, Kuala Lumpur, Malaysia.
Saidatul NorbayaFamily Health Development Division, Ministry of Health Malaysia, Putrajaya, Malaysia.
Liam MurrayCentre for Public Health, Queen's University Belfast, Royal Victoria Hospital, Belfast, UK.
Marie M CantwellCentre for Public Health, Queen's University Belfast, Royal Victoria Hospital, Belfast, UK.
Muhammad Yazid JalaludinFaculty of Medicine, Department of Paediatrics, University of Malaya, Kuala Lumpur, Malaysia.
MyHeART study group

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo determine the prevalence of vitamin D deficiency (<37.5 nmol/L) among young adolescents in Malaysia and its association with demographic characteristics, anthropometric measures and physical activity.

designThis is a cross-sectional study among Form 1 (year 7) students from 15 schools selected using a stratified random sampling design. Information regarding sociodemographic characteristics, clinical data and environmental factors was collected and blood samples were taken for total vitamin D. Descriptive and multivariable logistic regression was performed on the data.

settingNational secondary schools in Peninsular Malaysia.

participants1361 students (mean age 12.9±0.3 years) (61.4% girls) completed the consent forms and participated in this study. Students with a chronic health condition and/or who could not understand the questionnaires due to lack of literacy were excluded.

main outcome measuresVitamin D status was determined through measurement of sera 25-hydroxyvitamin D (25(OH)D). Body mass index (BMI) was classified according to International Obesity Task Force (IOTF) criteria. Self-reported physical activity levels were assessed using the validated Malay version of the Physical Activity Questionnaire for Older Children (PAQ-C).

resultsDeficiency in vitamin D was seen in 78.9% of the participants. The deficiency was significantly higher in girls (92.6%, p<0.001), Indian adolescents (88.6%, p<0.001) and urban-living adolescents (88.8%, p<0.001). Females (OR=8.98; 95% CI 6.48 to 12.45), adolescents with wider waist circumference (OR=2.64; 95% CI 1.65 to 4.25) and in urban areas had higher risks (OR=3.57; 95% CI 2.54 to 5.02) of being vitamin D deficient.

conclusionsThe study shows a high prevalence of vitamin D deficiency among young adolescents. Main risk factors are gender, ethnicity, place of residence and obesity.

Indexed as

ExerciseAdolescentAsian PeopleBody Mass IndexCross-Sectional StudiesFemaleHumansLogistic ModelsLongitudinal StudiesMalaysiaMaleObesityPrevalenceSelf ReportSex DistributionSex Factors25-hydroxyvitamin DVitamin DPREVENTIVE MEDICINEPUBLIC HEALTHSOCIAL MEDICINE

Identifiers

PMID27540095
PMCPMC5013370

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LicenceCC BY-NC
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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.