High prevalence of vitamin D insufficiency and its association with BMI-age among primary school children in Kuala Lumpur, Malaysia

Deficiencies of micronutrients can affect the growth and development of children. There is increasing evidence of vitamin D deficiency world-wide resulting in nutritional rickets in children and osteoporosis in adulthood. Data on the micronutrient status of children in Malaysia is limited. The aim o...

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Main Authors: Khor, Geok Lin, Chee, Winnie Siew Swee, Mohd Shariff, Zalilah, Poh, Bee Koon, Arumugam, Mohan, Ab Rahman, Jamalludin, Theobald, Hannah E.
Format: Article
Language:English
Published: BioMed Central 2011
Online Access:http://psasir.upm.edu.my/id/eprint/24664/
http://psasir.upm.edu.my/id/eprint/24664/1/High%20prevalence%20of%20vitamin%20D%20insufficiency%20and%20its%20association%20with%20BMI.pdf
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author Khor, Geok Lin
Chee, Winnie Siew Swee
Mohd Shariff, Zalilah
Poh, Bee Koon
Arumugam, Mohan
Ab Rahman, Jamalludin
Theobald, Hannah E.
author_facet Khor, Geok Lin
Chee, Winnie Siew Swee
Mohd Shariff, Zalilah
Poh, Bee Koon
Arumugam, Mohan
Ab Rahman, Jamalludin
Theobald, Hannah E.
author_sort Khor, Geok Lin
building UPM Institutional Repository
collection Online Access
description Deficiencies of micronutrients can affect the growth and development of children. There is increasing evidence of vitamin D deficiency world-wide resulting in nutritional rickets in children and osteoporosis in adulthood. Data on the micronutrient status of children in Malaysia is limited. The aim of this study was to determine the anthropometric and micronutrient status of primary school children in the capital city of Kuala Lumpur. A cross sectional study of primary aged school children was undertaken in 2008. A total of 402 boys and girls aged 7-12 years, attending primary schools in Kuala Lumpur participated in the study. Fasting blood samples were taken to assess vitamin D [as 25(OH)D], vitamin B12, folate, zinc, iron, and ferritin and haemoglobin concentrations. Height-for-age and body mass index for age (BMI-for-age) of the children were computed. Most of the children had normal height-for-age (96.5%) while slightly over half (58.0%) had normal BMI-for-age. A total of 17.9% were overweight and 16.4% obese. Prevalence of obesity was significantly higher among the boys (25%) than in the girls (9.5%) (χ2 = 22.949; P < .001). Most children had adequate concentrations of haemoglobin, serum ferritin, zinc, folate and vitamin B12. In contrast, 35.3% of the children had serum 25(OH)D concentrations indicative of vitamin D deficiency(≤37.5 nmol/L) and a further 37.1% had insufficiency concentrations (> 37.5-≤50 nmol/L). Among the boys, a significant inverse association was found between serum vitamin D status and BMI-for-age (χ2 = 5.958; P = .016). This study highlights the presence of a high prevalence of sub-optimal vitamin D status among urban primary school children in a tropical country. In light of the growing problem of obesity in Malaysian children, these findings emphasize the important need for appropriate interventions to address both problems of obesity and poor vitamin D status in children.
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spelling upm-246642016-12-01T08:44:05Z http://psasir.upm.edu.my/id/eprint/24664/ High prevalence of vitamin D insufficiency and its association with BMI-age among primary school children in Kuala Lumpur, Malaysia Khor, Geok Lin Chee, Winnie Siew Swee Mohd Shariff, Zalilah Poh, Bee Koon Arumugam, Mohan Ab Rahman, Jamalludin Theobald, Hannah E. Deficiencies of micronutrients can affect the growth and development of children. There is increasing evidence of vitamin D deficiency world-wide resulting in nutritional rickets in children and osteoporosis in adulthood. Data on the micronutrient status of children in Malaysia is limited. The aim of this study was to determine the anthropometric and micronutrient status of primary school children in the capital city of Kuala Lumpur. A cross sectional study of primary aged school children was undertaken in 2008. A total of 402 boys and girls aged 7-12 years, attending primary schools in Kuala Lumpur participated in the study. Fasting blood samples were taken to assess vitamin D [as 25(OH)D], vitamin B12, folate, zinc, iron, and ferritin and haemoglobin concentrations. Height-for-age and body mass index for age (BMI-for-age) of the children were computed. Most of the children had normal height-for-age (96.5%) while slightly over half (58.0%) had normal BMI-for-age. A total of 17.9% were overweight and 16.4% obese. Prevalence of obesity was significantly higher among the boys (25%) than in the girls (9.5%) (χ2 = 22.949; P < .001). Most children had adequate concentrations of haemoglobin, serum ferritin, zinc, folate and vitamin B12. In contrast, 35.3% of the children had serum 25(OH)D concentrations indicative of vitamin D deficiency(≤37.5 nmol/L) and a further 37.1% had insufficiency concentrations (> 37.5-≤50 nmol/L). Among the boys, a significant inverse association was found between serum vitamin D status and BMI-for-age (χ2 = 5.958; P = .016). This study highlights the presence of a high prevalence of sub-optimal vitamin D status among urban primary school children in a tropical country. In light of the growing problem of obesity in Malaysian children, these findings emphasize the important need for appropriate interventions to address both problems of obesity and poor vitamin D status in children. BioMed Central 2011 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/24664/1/High%20prevalence%20of%20vitamin%20D%20insufficiency%20and%20its%20association%20with%20BMI.pdf Khor, Geok Lin and Chee, Winnie Siew Swee and Mohd Shariff, Zalilah and Poh, Bee Koon and Arumugam, Mohan and Ab Rahman, Jamalludin and Theobald, Hannah E. (2011) High prevalence of vitamin D insufficiency and its association with BMI-age among primary school children in Kuala Lumpur, Malaysia. BMC Public Health, 11. art. no. 95. pp. 1-8. ISSN 1471-2458 http://bmcpublichealth.biomedcentral.com/articles/10.1186/1471-2458-11-95 10.1186/1471-2458-11-95
spellingShingle Khor, Geok Lin
Chee, Winnie Siew Swee
Mohd Shariff, Zalilah
Poh, Bee Koon
Arumugam, Mohan
Ab Rahman, Jamalludin
Theobald, Hannah E.
High prevalence of vitamin D insufficiency and its association with BMI-age among primary school children in Kuala Lumpur, Malaysia
title High prevalence of vitamin D insufficiency and its association with BMI-age among primary school children in Kuala Lumpur, Malaysia
title_full High prevalence of vitamin D insufficiency and its association with BMI-age among primary school children in Kuala Lumpur, Malaysia
title_fullStr High prevalence of vitamin D insufficiency and its association with BMI-age among primary school children in Kuala Lumpur, Malaysia
title_full_unstemmed High prevalence of vitamin D insufficiency and its association with BMI-age among primary school children in Kuala Lumpur, Malaysia
title_short High prevalence of vitamin D insufficiency and its association with BMI-age among primary school children in Kuala Lumpur, Malaysia
title_sort high prevalence of vitamin d insufficiency and its association with bmi-age among primary school children in kuala lumpur, malaysia
url http://psasir.upm.edu.my/id/eprint/24664/
http://psasir.upm.edu.my/id/eprint/24664/
http://psasir.upm.edu.my/id/eprint/24664/
http://psasir.upm.edu.my/id/eprint/24664/1/High%20prevalence%20of%20vitamin%20D%20insufficiency%20and%20its%20association%20with%20BMI.pdf