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. 2020 Apr 20;180(6):888–895. doi: 10.1001/jamainternmed.2020.0950

Figure 3. Age-Adjusted Relative Rates (RRs) of Thyroid Cancer Overall, by Early and Late Period, and by Detection Method Comparing Fire Department of the City of New York With the Rochester Epidemiology Project.

Figure 3.

Relative rates, controlling for age group (in 5-year strata), comparing Fire Department of the City of New York and Rochester Epidemiology Project incident thyroid cancer rates, overall, by an early (September 12, 2001, to December 31, 2009) and late (January 1, 2010, to December 31, 2018) period and by detection method (asymptomatic and symptomatic). An RR greater than 1 indicates that the incidence rate of thyroid cancer is greater in the Fire Department compared with the Rochester Epidemiology Project, Rochester, Minnesota, and an RR less than 1 indicates that the incidence rate of thyroid cancer is greater in the Rochester Epidemiology Project.