The burden of disease attributable to UV radiation can be expressed as : Number of deaths, Death rate, Number of DALYs, DALYs rate, Disability -Adusted Life Years (or DALYs) are a summary measure of population health that combine (i) the years of life lost as a result of premature death and (ii) the years lived with a disease.
Death and DALY rates are calculated by dividing the number of deaths, resp. DALYs, by the total population. Evidence from epidemiological studies have shown that exposure to excessive UV radiation is linked with a range of conditions. Of these, evidence for the following have been assessed on sufficiently strong basis for inclusion in the burden of disease estimates:
Malignant melanoma, Squameous cell carcinoma, Basal cell carcinoma, Solar keratoses, Sunburn, Cortical cataract Squameous cell carcinoma of the cornea and conjuctiva, Pterygium, Reactivation of herpes labialis