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עמוד בית Mon, 23.09.19

Original Articles


Vitamin D Insufficiency in a Sunny Environment: A Demographic and Seasonal Analysis

Click on the icon on the upper right hand side for the article by Yael Oren, Yinon Shapira, MD, Nancy Agmon-Levin, MD, Shaye Kivity, MD, Yaron Zafrir, MD, Arie Altman, MD, Aaron Lerner, MD and Yehuda Shoenfeld, MD.
IMAJ 2010: 12: December: 751-756
Abstract

Background: Hypovitaminosis D has been shown to be extremely common in various regions around the world, mostly at high latitudes. Israel is characterized by certain features – cultural (e.g., ethnic isolates) and geographic (e.g., sunny climate) – that have been identified for their possible association with vitamin D status.


Objectives: To conduct an ecological study on a representative sample of the population of Israel, testing vitamin D status across age groups, genders, ethnic groups, and seasons.


Methods: We obtained serum samples from 195 healthy Israeli volunteers representing a broad demographic spectrum. Serum concentrations of 25(OH)D were measured with the commercial kit Liaison 25(OH)D Assay (DiaSorin, Italy).


Results: The mean vitamin D level for the entire cohort was surprisingly low (22.9 ± 10.1 ng/ml), with 149 subjects (78%) suffering from vitamin D insufficiency (< 30 ng/ml). Vitamin D status was better in infants than in older age groups. Differences by gender were significant only in the infant age group (i.e., vitamin D status was worse among females) and were not prominent across older ages. Israelis of Ashkenazi origin had higher vitamin D mean levels than those of Sephardic origin, who, in turn, had higher vitamin D levels than Arab subjects (31.4 ± 12, 24.1 ± 10, and 17.6 ± 9 ng/ml respectively). With regard to season, there were no differences between the samples collected in winter and the samples collected in summer.


Conclusions: The results suggest that hypovitaminosis D is common across all ages, genders and seasons in Israel, a country characterized by a sunny Mediterranean climate. Specific ethnic groups may be at especially high risk.

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הבהרה משפטית: כל נושא המופיע באתר זה נועד להשכלה בלבד ואין לראות בו ייעוץ רפואי או משפטי. אין הר"י אחראית לתוכן המתפרסם באתר זה ולכל נזק שעלול להיגרם. כל הזכויות על המידע באתר שייכות להסתדרות הרפואית בישראל. מדיניות פרטיות
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