Sophie St-Hilaire worked with a team of researchers from Idaho State University, USA, to study the correlation between various weather parameters and the incidence of prostate cancer at the County-level across the US. She said, "We found that colder weather, and low rainfall, were strongly correlated with prostate cancer. Although we can't say exactly why this correlation exists, the trends are consistent with what we would expect given the effects of climate on the deposition, absorption, and degradation of persistent organic pollutants including pesticides".
Approximately one in six men will develop prostate cancer in their life-time and across the northern hemisphere, it has been reported that incidences are higher in the north than the south. It is known that some persistent organic pollutants cause cancer and researchers believe that cold weather slows their degradation, while also causing them to precipitate towards the ground. Rain and humidity also play important roles in their absorption and degradation. According to St-Hilaire, "This study provides an additional hypothesis for the north-south distribution of prostate cancer, which builds on the existing supposition that individuals at northern latitudes may be deficient in Vitamin D due to low exposure to UV radiation during the winter months. Our study suggests that in addition to vitamin D deficiency associated with exposure to UV radiation, other meteorological conditions may also significantly affect the incidence of prostate cancer".
Notes to Editors
International Journal of Health Geographics (in press)
2. International Journal of Health Geographics is an Open Access, peer-reviewed, online journal fully dedicated to publishing quality manuscripts on all aspects of geospatial information systems and science applications in health and healthcare.
3. BioMed Central (http://www.biomedcentral.com/) is an STM (Science, Technology and Medicine) publisher which has pioneered the open access publishing model. All peer-reviewed research articles published by BioMed Central are made immediately and freely accessible online, and are licensed to allow redistribution and reuse. BioMed Central is part of Springer Science+Business Media, a leading global publisher in the STM sector.
Graeme Baldwin | EurekAlert!
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