The climatology of Vitamin D producing ultraviolet radiation over the United States

The Journal of Steroid Biochemistry and Molecular Biology
Michael Kimlin

Abstract

The US population is located in a wide range of latitudes, longitudes, and altitudes over mainland United States. Subsequently, high UV irradiants are found at southern locales, whilst in some northern areas, particularly at high latitudes, insufficient levels of ambient UV radiation to synthesize pre Vitamin D in humans are reported. This fact, coupled with the cold northern climates (resulting in high amounts of skin covered in clothing), some people may be susceptible to hypovitaminosis D. Surprisingly, hypovitaminosis D is still relatively common in developed countries such as the USA and the UK. In a large epidemiologically based study of 15,778 noninstitutionalized adult men and women living in the US, 9% had low serum 25-hydroxyvitamin D levels (15 ng/ml) [N. Engl. J. Med. 339 (1998) 12]. Further evidence of this came from recent research by McGrath [Med. Hypertens. 56 (2001) 367] who found that adults living in South East Queensland (with Queensland known as having the highest rates of skin cancer in the world) have surprisingly high rates of Vitamin D deficiency and insufficiency (8 and 23%, respectively). Therefore, hypovitaminosis D represents a serious issue for public health in both sunny and cold climates. This pa...Continue Reading

References

Mar 15, 2002·Trends in Endocrinology and Metabolism : TEM·Emmanuel GarcionDidier Wion

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Citations

Jun 22, 2010·American Journal of Epidemiology·Rachael Z Stolzenberg-SolomonLaurence N Kolonel
Feb 9, 2012·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Nina G Jablonski, George Chaplin
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Sep 30, 2005·Radiation Protection Dosimetry·D P FlemingD McMahon

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