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However, data from the National Health and Nutrition Examination Surveys (NHANES) in 2001-2006 shows that one-quarter were at risk of vitamin D inadequacy (serum 25OHD 30–49 nmol/L), and 8% were at risk of vitamin D deficiency (serum 25OHD less than 30 nmol/L). <ref> Looker AC, Johnson CL, Lacher DA, et al. Vitamin D status: United States, 2001–2006. NCHS data brief, no 59. Hyattsville, MD: National Center for Health Statistics. 2011.</ref> | |||
{| class="wikitable" | |||
! colspan="5" style="text-align: center; font-weight: bold;" | Serum 25OHD status of persons over 1 year old: United States, 2001-2006 | |||
|- | |||
| style="text-align: center;" | | |||
| style="text-align: center; font-weight: bold;" | Possibly harmful | |||
| style="text-align: center; font-weight: bold;" | Sufficient | |||
| style="text-align: center; font-weight: bold;" | Inadequate | |||
| style="text-align: center; font-weight: bold;" | Deficient | |||
|- | |||
| style="font-weight: bold;" | Level | |||
| style="text-align: center;" | > 125 nmol/L | |||
| style="text-align: center;" | 50-124 nmol/L | |||
| style="text-align: center;" | 30-49 nmol/L | |||
| style="text-align: center;" | <30 nmol/L | |||
|- | |||
| style="font-weight: bold;" | Percentage | |||
| style="text-align: center;" | 1% | |||
| style="text-align: center;" | 67% | |||
| style="text-align: center;" | 24% | |||
| style="text-align: center;" | 8% | |||
|} | |||
Statistics from Canadian Health Measures Survey (CHMS), Cycle 1, 2007–2009 shows that 13% of Canadians have vitamin D level below 40 nmol/L. <ref name="urlProportion of the Population Above and Below 40 nmol/L Serum 25-Hydroxyvitamin D Concentrations and Cumulative Distribution of Serum 25-Hydroxyvitamin D Concentrations: United States and Canada - Dietary Reference Intakes for Calcium and Vitamin D - NCBI Bookshelf">{{cite web |url=https://www.ncbi.nlm.nih.gov/books/NBK56054/ |title=Proportion of the Population Above and Below 40 nmol/L Serum 25-Hydroxyvitamin D Concentrations and Cumulative Distribution of Serum 25-Hydroxyvitamin D Concentrations: United States and Canada - Dietary Reference Intakes for Calcium and Vitamin D - NCBI Bookshelf |format= |work= |accessdate=}}</ref> | |||
===Age=== | ===Age=== | ||
Revision as of 20:18, 28 August 2017
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Vitamin D deficiency Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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Sandbox: sadaf On the Web |
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American Roentgen Ray Society Images of Sandbox: sadaf |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Sadaf Sharfaei M.D.[2]
Overview
Vitamin D deficiency is common worldwide and the incidence is increasing in the recent years. In the US, vitamin D deficiency is more prevalent among non-white ethnic groups. The prevalence is different based on different laboratory methods and the cut-off for the vitamin D deficiency.
Epidemiology and Demographics
Prevalence
According to Institute of Medicine (IOM), based on the National Health and Nutrition Examination Survey (NHANES) 2003–2006, there is an overall 18.8% prevalence of serum 25OHD concentrations below 40 nmol/L in the US. [1] |-
| Prevalence of serum vitamin D concentrations below 40 nmol/l | |||||
|---|---|---|---|---|---|
| Total | Non-Hispanic White | Non-Hispanic Black | Mexican American | Others | |
| Percent | 18.8 (16.3–21.5) | 10.6 (8.9–12.4) | 53.6 (48.9–58.2) | 27.2 (22.8–32.0) | 27.2 (23.2–31.7) |
However, data from the National Health and Nutrition Examination Surveys (NHANES) in 2001-2006 shows that one-quarter were at risk of vitamin D inadequacy (serum 25OHD 30–49 nmol/L), and 8% were at risk of vitamin D deficiency (serum 25OHD less than 30 nmol/L). [2]
| Serum 25OHD status of persons over 1 year old: United States, 2001-2006 | ||||
|---|---|---|---|---|
| Possibly harmful | Sufficient | Inadequate | Deficient | |
| Level | > 125 nmol/L | 50-124 nmol/L | 30-49 nmol/L | <30 nmol/L |
| Percentage | 1% | 67% | 24% | 8% |
Statistics from Canadian Health Measures Survey (CHMS), Cycle 1, 2007–2009 shows that 13% of Canadians have vitamin D level below 40 nmol/L. [1]
Age
Gender
Race
Developed Countries
Developing Countries
References
- ↑ 1.0 1.1 "Proportion of the Population Above and Below 40 nmol/L Serum 25-Hydroxyvitamin D Concentrations and Cumulative Distribution of Serum 25-Hydroxyvitamin D Concentrations: United States and Canada - Dietary Reference Intakes for Calcium and Vitamin D - NCBI Bookshelf".
- ↑ Looker AC, Johnson CL, Lacher DA, et al. Vitamin D status: United States, 2001–2006. NCHS data brief, no 59. Hyattsville, MD: National Center for Health Statistics. 2011.