Prevalence and Determinants of Vitamin D Deficiency in 9595 Mongolian Schoolchildren: A Cross-Sectional Study

Population-based data relating to vitamin D status of children in Northeast Asia are lacking. We conducted a cross-sectional study to determine the prevalence and determinants of vitamin D deficiency in 9595 schoolchildren aged 6–13 years in Ulaanbaatar (UB), the capital city of Mongolia. Risk facto...

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Main Authors: Jorick Bater, Sabri Bromage, Tuyatsetseg Jambal, Enkhjargal Tsendjav, Enkhsaikhan Lkhagvasuren, Yanjmaa Jutmann, Adrian R. Martineau, Davaasambuu Ganmaa
Format: Article
Language:English
Published: MDPI AG 2021-11-01
Series:Nutrients
Subjects:
Online Access:https://www.mdpi.com/2072-6643/13/11/4175
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author Jorick Bater
Sabri Bromage
Tuyatsetseg Jambal
Enkhjargal Tsendjav
Enkhsaikhan Lkhagvasuren
Yanjmaa Jutmann
Adrian R. Martineau
Davaasambuu Ganmaa
author_facet Jorick Bater
Sabri Bromage
Tuyatsetseg Jambal
Enkhjargal Tsendjav
Enkhsaikhan Lkhagvasuren
Yanjmaa Jutmann
Adrian R. Martineau
Davaasambuu Ganmaa
author_sort Jorick Bater
collection DOAJ
description Population-based data relating to vitamin D status of children in Northeast Asia are lacking. We conducted a cross-sectional study to determine the prevalence and determinants of vitamin D deficiency in 9595 schoolchildren aged 6–13 years in Ulaanbaatar (UB), the capital city of Mongolia. Risk factors for vitamin D deficiency were collected by questionnaire, and serum 25-hydroxyvitamin D (25[OH]D) concentrations were measured using an enzyme-linked fluorescent assay, standardized and categorized as deficient (25[OH]D <10 ng/mL) or not. Odds ratios for associations between independent variables and risk of vitamin D deficiency were calculated using multivariate analysis with adjustment for potential confounders. The prevalence of vitamins D deficiency was 40.6% (95% CI 39.7% to 41.6%). It was independently associated with female gender (adjusted odds ratio [aOR] for girls vs. boys 1.23, 95% CI 1.11–1.35), month of sampling (aORs for December–February vs. June–November 5.28 [4.53–6.15], March–May vs. June–November 14.85 [12.46–17.74]), lower levels of parental education (P for trend <0.001), lower frequency of egg consumption (P for trend <0.001), active tuberculosis (aOR 1.40 [1.03–1.94]), household smoking (aOR 1.13 [1.02 to1.25]), and shorter time outdoors (P for trend <0.001). We report a very high prevalence of vitamin D deficiency among Mongolian schoolchildren, which requires addressing as a public health priority.
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spelling doaj.art-a86a0e84d5444f65b4170f2867c7ca202023-11-23T00:51:48ZengMDPI AGNutrients2072-66432021-11-011311417510.3390/nu13114175Prevalence and Determinants of Vitamin D Deficiency in 9595 Mongolian Schoolchildren: A Cross-Sectional StudyJorick Bater0Sabri Bromage1Tuyatsetseg Jambal2Enkhjargal Tsendjav3Enkhsaikhan Lkhagvasuren4Yanjmaa Jutmann5Adrian R. Martineau6Davaasambuu Ganmaa7Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USADepartment of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USAT School of Industrial Technology, Mongolian University of Science & Technology, Ulaanbaatar 14210, MongoliaThe Mongolian Health Initiative, Ulaanbaatar 14210, MongoliaMinistry of Health, Ulaanbaatar 14210, MongoliaDepartment of Math and Statistics, University of North Carolina at Charlotte, Charlootte, NC 28223, USABlizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London E1 4NS, UKDepartment of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USAPopulation-based data relating to vitamin D status of children in Northeast Asia are lacking. We conducted a cross-sectional study to determine the prevalence and determinants of vitamin D deficiency in 9595 schoolchildren aged 6–13 years in Ulaanbaatar (UB), the capital city of Mongolia. Risk factors for vitamin D deficiency were collected by questionnaire, and serum 25-hydroxyvitamin D (25[OH]D) concentrations were measured using an enzyme-linked fluorescent assay, standardized and categorized as deficient (25[OH]D <10 ng/mL) or not. Odds ratios for associations between independent variables and risk of vitamin D deficiency were calculated using multivariate analysis with adjustment for potential confounders. The prevalence of vitamins D deficiency was 40.6% (95% CI 39.7% to 41.6%). It was independently associated with female gender (adjusted odds ratio [aOR] for girls vs. boys 1.23, 95% CI 1.11–1.35), month of sampling (aORs for December–February vs. June–November 5.28 [4.53–6.15], March–May vs. June–November 14.85 [12.46–17.74]), lower levels of parental education (P for trend <0.001), lower frequency of egg consumption (P for trend <0.001), active tuberculosis (aOR 1.40 [1.03–1.94]), household smoking (aOR 1.13 [1.02 to1.25]), and shorter time outdoors (P for trend <0.001). We report a very high prevalence of vitamin D deficiency among Mongolian schoolchildren, which requires addressing as a public health priority.https://www.mdpi.com/2072-6643/13/11/4175Mongoliaschoolchildrenvitamin Ddeterminantsserum 25(OH)Dfortification
spellingShingle Jorick Bater
Sabri Bromage
Tuyatsetseg Jambal
Enkhjargal Tsendjav
Enkhsaikhan Lkhagvasuren
Yanjmaa Jutmann
Adrian R. Martineau
Davaasambuu Ganmaa
Prevalence and Determinants of Vitamin D Deficiency in 9595 Mongolian Schoolchildren: A Cross-Sectional Study
Nutrients
Mongolia
schoolchildren
vitamin D
determinants
serum 25(OH)D
fortification
title Prevalence and Determinants of Vitamin D Deficiency in 9595 Mongolian Schoolchildren: A Cross-Sectional Study
title_full Prevalence and Determinants of Vitamin D Deficiency in 9595 Mongolian Schoolchildren: A Cross-Sectional Study
title_fullStr Prevalence and Determinants of Vitamin D Deficiency in 9595 Mongolian Schoolchildren: A Cross-Sectional Study
title_full_unstemmed Prevalence and Determinants of Vitamin D Deficiency in 9595 Mongolian Schoolchildren: A Cross-Sectional Study
title_short Prevalence and Determinants of Vitamin D Deficiency in 9595 Mongolian Schoolchildren: A Cross-Sectional Study
title_sort prevalence and determinants of vitamin d deficiency in 9595 mongolian schoolchildren a cross sectional study
topic Mongolia
schoolchildren
vitamin D
determinants
serum 25(OH)D
fortification
url https://www.mdpi.com/2072-6643/13/11/4175
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