Researchers found no overall increase in cancer risk among World Trade Center (WTC)-exposed firefighters following the 9/11 attacks compared with other firefighters from several US cities. They noted a nearly 4-fold increase in the rate in thyroid cancer, but this increased risk was not significant after controlling for possible biases related to cancer screening. (WTC-exposed firefighters have access to health care and routine health monitoring exams even after retirement.)
The investigators also found a 1.4-fold increase in the rate in prostate cancer in 2005 to 2009 among WTC-exposed firefighters compared with other urban firefighters.
The American Journal of Industrial Medicine findings come from the same group of researchers who previously discovered an elevated cancer risk in WTC-exposed firefighters compared with the general population.
Article: Post-9/11 cancer incidence in World Trade Center-exposed New York City firefighters as compared to a pooled cohort of firefighters from San Francisco, Chicago and Philadelphia (9/11/2001-2009), William Moir MPH, Rachel Zeig-Owens DrPH, MPH, Robert D. Daniels PhD, Charles B. Hall PhD, Mayris P. Webber DrPH, MPH, Nadia Jaber RPA-C, James H. Yiin PhD, Theresa Schwartz MS, Xiaoxue Liu MS, Madeline Vossbrinck MS, Kerry Kelly MD, David J. Prezant MD, American Journal of Industrial Medicine, doi: 10.1002/ajim.22635, published 1 September 2016.