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La exposición al sol y la naevi melanocítica en niños pequeños australianos
S L Harrison1, R MacLennan, R Speare
1Anton Breinl Centre, Department of Public Health and Tropical Medicine, James Cook University of North Queensland, Townsville, Australia.
Lancet (London, England)
|December 3, 1994
Resumen
La exposición al sol durante la infancia aumenta significativamente el naevi melanocítico (conteo de topos) en los niños de Queensland. Tanto la exposición solar aguda como la crónica están relacionadas con el desarrollo de más lunares, un factor de riesgo clave para el melanoma.
Área de la Ciencia:
- Dermatología Dermatología dermatología.
- La pediatría es la medicina de los niños.
- Epidemiología La epidemiología.
Sus antecedentes:
- Queensland, Australia, exhibe las tasas de melanoma más altas del mundo.
- Los niños de Queensland tienen los recuentos más altos de naevi melanocítico, un factor de riesgo primario de melanoma.
- El estudio retrospectivo del impacto de la exposición solar temprana en el riesgo de melanoma en adultos es un desafío.
Objetivo del estudio:
- Investigar la asociación entre la exposición al sol y el desarrollo de navíos melanocíticos en niños pequeños.
- Para identificar patrones específicos de exposición al sol relacionados con el aumento de los recuentos de naevi en niños del norte de Queensland.
Principales métodos:
- Se encuestó a 506 niños de entre 1 y 6 años en Townsville, Queensland del Norte.
- Evaluación de la exposición al sol mediante un cuestionario.
- Navegación melanocítica cuantificada mediante un protocolo internacional estandarizado.
Principales resultados:
- Los altos recuentos de naevi melanocíticos (cuartilo superior) se asociaron significativamente con más de 4 horas / día de exposición al sol (aRR 3.29) y antecedentes de quemaduras solares (aRR 1.89).
- El recuento de naevus melanocítico aumenta con la edad, la reflexión de la piel más clara y las pecas.
- Tanto la exposición solar aguda como la crónica se correlacionan con el desarrollo de naevi en los niños.
Conclusiones:
- La exposición intensa a la luz ultravioleta en Townsville conduce a una temprana y numerosa naevi melanocítica en los niños.
- La exposición al sol en la infancia es un factor crítico en el desarrollo de la piel melanocítica, lo que pone de relieve la necesidad de tomar medidas tempranas de protección solar.
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