Cancer incidence in World Trade Center rescue and recovery workers: 14 years of follow-up

In the largest cohort of 9/11 rescue and recovery workers ever studied, with 14 years of follow-up, overall cancer incidence was lower than expected (SIR 0.96; 95% CI 0.93-0.99). Statistically significantly elevated SIRs (ranging from 1.19 to 1.81) were seen for cutaneous melanoma, prostate cancer, thyroid cancer and tonsil cancer. Workers arriving at the WTC on September 11 had statistically significantly higher aHRs than those arriving after September 17 for prostate cancer (aHR 1.61; 95% CI 1.33-1-95) and thyroid cancer (1.77; 1.11-2.81).