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Prostate Cancer Survival Is Dependent On Season Of Diagnosis
UroToday.com- A report in the September 2007 issue of The Prostate by Dr. Lagunova and associates from Norway and Oregon suggests that men diagnosed with prostate cancer (CaP) in the summer and autumn seasons have better survival.
The work was based upon the knowledge that racial and environmental factors affect CaP rates and prognosis. Vitamin D deficiency is linked to higher CaP mortality. The authors hypothesized that calcidiol levels are higher during summer and autumn and thus may impact CaP incidence and outcome. They cite Giovannucci who reported that a high calcidiol level reduced the overall death rate by 29% and the incidence rates by 17%. The researchers divided Norway into three regions based upon annual solar exposures and documented vitamin D consumption. Clinic and demographic data was available from Norwegian national databases. [More...]
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