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Title: Serum selenium concentration in a representative sample of the Canarian population
Authors: Díaz Romero, Carlos
López Blanco, Félix 
Henríquez Sánchez, Patricia 
Rodríguez Rodríguez, Elena
Serra-Majem, Lluis 
UNESCO Clasification: 3206 Ciencias de la nutrición
Keywords: Serum Selenium
Smoking Habit
Alcohol Consumption
Issue Date: 2001
Journal: Science of the Total Environment 
Abstract: The concentration of serum selenium in 395 individuals (187 males + 208 females) living in the Canary Islands, Spain was determined by hydride generation atomic absorption spectrometry. The mean selenium concentration was 74.7 +/- 25.2 mug/l ranging between 7.86 and 182.3 mug/l. Twenty-two adults (7.2% of the total) had serum selenium concentrations under 45 mug/l. It is widely accepted that below this selenium serum concentration (45 mug/l) there is an increased risk of cardiovascular disease and cancer. Our results fall within data recently published in other Spanish and European regions and are much lower than data observed in USA or seleniferous regions. The estimated Se intakes of our population were lower than the Recommended Dietary Allowances for American people. Individuals from Lanzarote had a mean Se concentration significantly higher than individuals from the other islands. This could be attributed to differences in Se content of soil and/or differences in dietary habits of the populations. Serum selenium concentration did not vary with the sex of the subjects. Individuals younger than 14 years old had a serum selenium concentration significantly lower than the rest of the individuals. No relationship with socio-economic status, educational level, smoking habits, physical exercise or beer consumption was found. However, individuals who consume wine more than three times a week showed higher selenium concentrations than individuals with lower consumption. Also, individuals with consumption above seven units of spirit drinks a week had the highest mean selenium concentration.
ISSN: 0048-9697
DOI: 10.1016/S0048-9697(00)00815-9
Source: Science of the Total Environment [ISSN 0048-9697], v. 269 (1-3), p. 65-73, (Marzo 2001)
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