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

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

Objective: To 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. Design: This is a cross-sectional study among Form 1 (year 7) students from 15 sch...

Full description

Saved in:

Bibliographic Details
Main Authors:	Al-Sadat, N., Majid, Hazreen Abdul, Sim, P.Y., Tin, Tin Su, Dahlui, Maznah, Bakar, M.F.A., Dzaki, N., Norbaya, S., Murray, L., Cantwell, M.M., Jalaludin, Muhammad Yazid
Format:	Article
Published:	BMJ Publishing Group 2016
Subjects:	R Medicine
Online Access:	http://eprints.um.edu.my/18261/ http://dx.doi.org/10.1136/bmjopen-2015-010689
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my.um.eprints.18261
record_format	eprints
spelling	my.um.eprints.182612019-12-16T08:34:52Z http://eprints.um.edu.my/18261/ Vitamin D deficiency in Malaysian adolescents aged 13 years: Findings from the Malaysian Health and Adolescents Longitudinal Research Team study (MyHeARTs) Al-Sadat, N. Majid, Hazreen Abdul Sim, P.Y. Tin, Tin Su Dahlui, Maznah Bakar, M.F.A. Dzaki, N. Norbaya, S. Murray, L. Cantwell, M.M. Jalaludin, Muhammad Yazid R Medicine Objective: To 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. Design: This 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. Setting: National secondary schools in Peninsular Malaysia. Participants: 1361 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 measures: Vitamin 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). Results: Deficiency 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. Conclusions: The study shows a high prevalence of vitamin D deficiency among young adolescents. Main risk factors are gender, ethnicity, place of residence and obesity. BMJ Publishing Group 2016 Article PeerReviewed Al-Sadat, N. and Majid, Hazreen Abdul and Sim, P.Y. and Tin, Tin Su and Dahlui, Maznah and Bakar, M.F.A. and Dzaki, N. and Norbaya, S. and Murray, L. and Cantwell, M.M. and Jalaludin, Muhammad Yazid (2016) Vitamin D deficiency in Malaysian adolescents aged 13 years: Findings from the Malaysian Health and Adolescents Longitudinal Research Team study (MyHeARTs). BMJ Open, 6 (8). 010689. ISSN 2044-6055 http://dx.doi.org/10.1136/bmjopen-2015-010689 doi:10.1136/bmjopen-2015-010689
institution	Universiti Malaya
building	UM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaya
content_source	UM Research Repository
url_provider	http://eprints.um.edu.my/
topic	R Medicine
spellingShingle	R Medicine Al-Sadat, N. Majid, Hazreen Abdul Sim, P.Y. Tin, Tin Su Dahlui, Maznah Bakar, M.F.A. Dzaki, N. Norbaya, S. Murray, L. Cantwell, M.M. Jalaludin, Muhammad Yazid Vitamin D deficiency in Malaysian adolescents aged 13 years: Findings from the Malaysian Health and Adolescents Longitudinal Research Team study (MyHeARTs)
description	Objective: To 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. Design: This 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. Setting: National secondary schools in Peninsular Malaysia. Participants: 1361 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 measures: Vitamin 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). Results: Deficiency 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. Conclusions: The study shows a high prevalence of vitamin D deficiency among young adolescents. Main risk factors are gender, ethnicity, place of residence and obesity.
format	Article
author	Al-Sadat, N. Majid, Hazreen Abdul Sim, P.Y. Tin, Tin Su Dahlui, Maznah Bakar, M.F.A. Dzaki, N. Norbaya, S. Murray, L. Cantwell, M.M. Jalaludin, Muhammad Yazid
author_facet	Al-Sadat, N. Majid, Hazreen Abdul Sim, P.Y. Tin, Tin Su Dahlui, Maznah Bakar, M.F.A. Dzaki, N. Norbaya, S. Murray, L. Cantwell, M.M. Jalaludin, Muhammad Yazid
author_sort	Al-Sadat, N.
title	Vitamin D deficiency in Malaysian adolescents aged 13 years: Findings from the Malaysian Health and Adolescents Longitudinal Research Team study (MyHeARTs)
title_short	Vitamin D deficiency in Malaysian adolescents aged 13 years: Findings from the Malaysian Health and Adolescents Longitudinal Research Team study (MyHeARTs)
title_full	Vitamin D deficiency in Malaysian adolescents aged 13 years: Findings from the Malaysian Health and Adolescents Longitudinal Research Team study (MyHeARTs)
title_fullStr	Vitamin D deficiency in Malaysian adolescents aged 13 years: Findings from the Malaysian Health and Adolescents Longitudinal Research Team study (MyHeARTs)
title_full_unstemmed	Vitamin D deficiency in Malaysian adolescents aged 13 years: Findings from the Malaysian Health and Adolescents Longitudinal Research Team study (MyHeARTs)
title_sort	vitamin d deficiency in malaysian adolescents aged 13 years: findings from the malaysian health and adolescents longitudinal research team study (myhearts)
publisher	BMJ Publishing Group
publishDate	2016
url	http://eprints.um.edu.my/18261/ http://dx.doi.org/10.1136/bmjopen-2015-010689
_version_	1654960680629960704
score	13.211869

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

Similar Items