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Vol. 58. Issue 6.
Pages 267-273 (June 2011)
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Vol. 58. Issue 6.
Pages 267-273 (June 2011)
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High prevalence of hypovitaminosis D in Medical Students in Gran Canaria. Canary Islands (Spain)
Elevada prevalencia de hipovitaminosis D en los estudiantes de Medicina de Gran Canaria, Islas Canarias
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Esther González-Padillaa, Adela Soria Lópezb, Elisa González-Rodrígueza, Sabrina García-Santanaa, Ana Mirallave-Pescadora, María del Val Groba Marcoa, Pedro Saavedrac, José Manuel Quesada Gómezd, Manuel Sosa Henríqueza,e,
Corresponding author
msosa@ono.com

Corresponding author.
a Grupo de Investigación en Osteoporosis y Metabolismo Mineral, Universidad de Las Palmas de Gran Canaria, Gran Canaria, Spain
b Servicio de Bioquímica Clínica, Hospital Universitario Insular, Las Palmas de Gran Canaria, Gran Canaria, Spain
c Departamento de Matemáticas, Universidad de Las Palmas de Gran Canaria, Gran Canaria, Spain
d Unidad de Investigación, Iniciativas y Desarrollo, Sanyres y Unidad de Metabolismo Mineral, Servicio de Endocrinología, Hospital Universitario Reina Sofía, RETICEF, Córdoba, Spain
e Unidad Metabólica Ósea, Hospital Universitario Insular, Gran Canaria, Spain
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Article information
Abstract
Background

Vitamin D deficiency has been reported in many diseases and in the general population. However, few reports have been published in young, healthy people. Vitamin D deficiency should not be found in medical students of the Canary Islands, because they have all the resources to avoid it.

Objective

To estimate the prevalence of vitamin D deficiency in a population of medical students of both genders from the University of Las Palmas de Gran Canaria.

Methods

103 medical students of both genders from the University of Las Palmas de Gran Canaria were studied. They completed a questionnaire and a physical examination. Vitamin D (25- hydroxycholecalciferol [25-HCC]), parathyroid hormone, and biochemical markers of bone remodeling were measured, and a general biochemical study was performed. Bone mineral density was assessed by dual energy X-ray absorptiometry at the lumbar spine and the proximal femur. Quantitative ultrasound parameters were measured at the calcaneus.

Results

Only 38.8% of medical students (42.1% of males and 44.9% of females) had 25-HCC values higher than 30ng/dL as currently recommended. Vitamin D deficiency (< 20ng/mL) was found in 32.6% and vitamin D insufficiency (< 30ng/mL) in 28.6% of medical students in Las Palmas de Gran Canaria.

Conclusion

Although they enjoy optimal conditions for having high vitamin D levels, almost two thirds of medical students in the Canary Islands have low vitamin D levels.

Keywords:
Vitamin D
Deficiency
Insufficiency
Students
Sun exposure
Canary Islands
Resumen
Fundamento

Se ha descrito la existencia de deficiencia de vitamina D tanto en la población general como en un gran número de enfermedades. Sin embargo, se han publicado pocos estudios realizados en población joven y sana en España. Teóricamente no debería encontrarse deficiencia de vitamina D entre los estudiantes de Medicina de la Universidad de Las Palmas de Gran Canaria, porque disponen de todos los medios para evitarla.

Objetivo

Estimar la prevalencia de deficiencia de vitamina D en una población de estudiantes de Medicina de ambos sexos de la Universidad de Las Palmas de Gran Canaria.

Método

Se estudiaron 103 alumnos de Medicina de ambos sexos de la Universidad de Las Palmas de Gran Canaria. A todos se les realizó un cuestionario y una exploración física. Se determinó la vitamina D 25-hidroxicolecalciferol (25-HCC), la hormona paratiroidea, varios marcadores bioquímicos de remodelado óseo y un estudio bioquímico general. Se estimó la densidad mineral ósea por absorciometría radiológica dual en la columna lumbar y en la extremidad proximal del fémur. Asimismo, se midieron los parámetros ultrasonográficos en el calcáneo.

Resultados

Sólo el 38,8% de los estudiantes de Medicina (el 42,1% de los varones y el 44,9% de las mujeres) presentaron niveles de 25-HCC superiores a 30ng/dl tal y como se recomienda en la actualidad. Se observó deficiencia de vitamina D (menos de 20ng/ml) en el 32,6% de los alumnos e insuficiencia (menos de 30ng/ml) en el 28,6% de los estudiantes de Medicina de la Universidad de Las Palmas de Gran Canaria.

Conclusiones

Aunque los estudiantes de Medicina de las Isla Canarias disponen de las condiciones ideales para tener unos niveles óptimos de vitamina D, casi dos tercios de ellos tienen valores de 25-HCC inferiores a 30ng/ml.

Palabras clave:
Vitamina D
Deficiencia
Insuficiencia
Estudiantes
Exposición solar
Islas Canarias
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