Occupational exposure to solar ultraviolet B radiation and risk of prostate cancer in Danish men

•Solar ultraviolet B radiation (UV) may reduce the risk of a number of chronic diseases, including prostate cancer.•The effect of occupational UV exposure on prostate cancer risk was explored by using registry-based employment•The study indicates that UV is associated with a modest decreased risk of prostate cancer.•Spending short daily periods of time in the sun may by recommended for indoor male workers.