The National Institute of Occupational Safety and Health has added what it's calling the largest study ever conducted on the risk of cancer among firefighters to a growing body of evidence that has spurred state legislation creating legal presumptions that firefighters' cancer is caused by their work.
The study examined 678,132 cancer patients, 3,996 of which were firefighters who worked in California from 1988-2007 – a sample size the authors said is the largest of any known study on the risk of cancer among firefighters. Because it was so large, lead author Rebecca Tsai to...
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