Ultraviolet radiation at places of residence and the development of melanocytic nevi in children (Australia)

Abstract

Objective: To investigate the relationship between ambient ultraviolet radiation (UV) exposure and number of melanocytic nevi in children. Methods: A longitudinal study of nevi was conducted in 1614 children in Perth, Australia. Children had nevi counted on the back, face and arms at ages 6, 10, and 12 years. Erythemally effective UV irradiance was used to estimate ambient exposure from their places of residence before entry to the study at age 6 years. Data on UV radiation were derived from satellite measurements of ozone and atmospheric reflectivity. Results: At baseline, the response rate was 70%. At age 10, 90% of those recruited had nevus counts and at age 12, 69%. Children who had migr..