Mesothelioma risk after 40 years since first exposure to asbestos: a pooled analysis

The study looked at whether the risk of mesothelioma continues to increase after more than 40 years since first exposure to asbestos. There is evidence that the rate of increase in the incidence for pleural mesothelioma reduces at about 45 years since first exposure while peritoneal mesothelioma continues to increase. So, while the rate of increase appears to start to level out after 4050 years no one survives long enough for the excess risk to disappear. 

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