Ultraviolet B Irradiance and Incidence Rates of Bladder Cancer in 174 Countries
NAVAL HEALTH RESEARCH CENTER SAN DIEGO CA
Pagination or Media Count:
Smoking is the principal established cause of bladder cancer, and per capita cigarette consumption was the variable most strongly associated with bladder cancer incidence rates in this study. Incidence rates were higher in countries located at latitudes distant from the equator where UVB irradiance is low, than in countries closer to the equator, where it is high. Furthermore, UVB irradiance was independently inversely associated with incidence rates, even after controlling for smoking or per capita health expenditures. The study was to determine whether an inverse association exists between ultraviolet B irradiance UVB and incidence rates of bladder cancer worldwide. Further investigation is needed to confirm the associations identified in this study using observational studies of individuals. This should include research on the association of serum 25OHD levels with risk of bladder cancer.
- Medicine and Medical Research