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Half of Mongolian schoolchildren have less than 10 ng of vitamin D – Nov 2021

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

Nutrients 2021, 13(11), 4175; https://doi.org/10.3390/nu13114175
by Jorick Bater 1,*ORCID,Sabri Bromage 1ORCID,Tuyatsetseg Jambal 2,Enkhjargal Tsendjav 3,Enkhsaikhan Lkhagvasuren 4,5,Yanjmaa Jutmann 6,Adrian R. Martineau 7 andDavaasambuu Ganmaa 1,8
1Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
2T School of Industrial Technology, Mongolian University of Science & Technology, Ulaanbaatar 14210, Mongolia
3The Mongolian Health Initiative, Ulaanbaatar 14210, Mongolia
4Ministry of Health, Ulaanbaatar 14210, Mongolia
5Department of Immunology, School of Biomedicine, Mongolian National University of Medical Sciences, Ulaanbaatar 14210, Mongolia
6Department of Math and Statistics, University of North Carolina at Charlotte, Charlootte, NC 28223, USA
7Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London E1 4NS, UK
8Channing Division of Network Medicine, Department of Medicine, Brigham and Wome’s Hospital, Harvard Medical School, Boston, MA 02115, USA


Very low D if not Sept-Nov
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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VitaminDwiki: Overview of Rickets and vitamin D contains

Rate of rickets is usually < 0.1% of births, unless dark skin or breastfed
Rate of rickets has greatly increased with the drop in vitamin D levels during the past 40 years
400 IU can prevent/treat most rickets Turkey gave vitamin D to EVERY child and eliminated Rickets
A low serum level of vitamin D does not indicate rickets
Sometimes rickets is also associated with a poor vitamin D receptor
Giving enough Vitamin D to the mother PREVENTS Rickets
Rate of rickets in some countries varies from 10% to 70% (typically poor health overall)
Rickets has been more than doubling in many countries
Rickets is strongly associated with severe breathing problems (weak ribs)
Bowed legs is not the primary indication of rickets (3 other indications of rickets are seen more often)
Vitamin D and Rickets consensus took 80 years

Rickets category has 123 items

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VitaminDWiki category Deficiency of Vitamin D

401 items   Some Highlights:

VitaminDWiki categories Deficiency & Infant-child

VitaminDWiki pages with MONGOLIA in title

This list is automatically updated

Items found: 8

Created by admin. Last Modification: Sunday November 21, 2021 18:12:16 GMT-0000 by admin. (Version 10)

Attached files

ID Name Comment Uploaded Size Downloads
16622 Mongolia Season.jpg admin 21 Nov, 2021 15:32 14.50 Kb 19
16621 Mongolian less than 10 ng.jpg admin 21 Nov, 2021 15:17 48.25 Kb 18
16620 Mongolia 9595 children.pdf PDF 2021 admin 21 Nov, 2021 15:16 454.98 Kb 0
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