UV, latitude, and spatial trends in prostate cancer mortality: All sunlight is not the same (United States)

Abstract Objective  We showed previously that Caucasian mortality rates from prostate cancer for 1970–1979 are significantly inversely correlated with ultraviolet (UV) radiation. We now present the analysis of prostate cancer mortality data over a 45-year period (1950–1994) in order to examine the persistence of this pattern. Furthermore, because vitamin D synthesis does not occur during winter months at latitudes higher than 40° N, we examined this relationship above and below 40° N latitude.