Living at a geographically higher elevation is associates with lower risk oof metabolic syndrome: prospective analysis of the SUN Cohort
Palabras clave : 
Materias Investigacion::Ciencias de la Salud::Nutrición y dietética
Environmental health
Metabolic syndrome
Cohort studies
Preventive medicine
Fecha de publicación: 
Editorial : 
Frontiers Media
Lopez-Pascual A, Bes-Rastrollo M, Sayón-Orea C, et al. Living at a Geographically Higher Elevation Is Associated with Lower Risk of Metabolic Syndrome: Prospective Analysis of the SUN Cohort. Frontiers in Physiology. 2017; 7:658.
Living in a geographically higher altitude affects oxygen availability. The possible connection between environmental factors and the development of metabolic syndrome (MetS) feature is not fully understood, being the available epidemiological evidence still very limited. The aim of the present study was to evaluate the longitudinal association between altitude and incidence of MetS and each of its components in a prospective Spanish cohort, The Seguimiento Universidad de Navarra (SUN) project. Our study included 6860 highly educated subjects (university graduates) free from any MetS criteria at baseline. The altitude of residence was imputed with the postal code of each individual subject residence according to the data of the Spanish National Cartographic Institute and participants were categorized into tertiles. MetS was defined according to the harmonized definition. Cox proportional hazards models were used to assess the association between the altitude of residence and the risk of MetS during follow-up. After a median follow-up period of 10 years, 462 incident cases of MetS were identified. When adjusting for potential confounders, subjects in the highest category of altitude (>456m) exhibited a significantly lower risk of developing MetS compared to those in the lowes ttertile (<122m) of altitude of residence [Model2:Hazardratio=0.75(95%Confidenceinterval:0.58–0.97);pfortrend=0.029]. Living at geographically higher altitude was associated with alower risk of developing MetS in the SUN project. Our findings suggest that geographical elevation may be an important factor linked to metabolic diseases.

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