Bode ED, Mathias KC, Stewart DF, et al. - The present study was performed to explore cardiovascular disease risk factors by BMI category in firefighters, the relationship of BMI and age with risk factor prevalence, and the prevalence of risk factors by BMI category within age groups. Between 2015 and 2018, cardiovascular measures from the medical evaluations of 4,453 firefighters, conducted at four occupational health clinics in the United States (South-West Cohort, Mid-Atlantic Cohort, South-East Cohort, and Mid-West Cohort), were examined cross-sectionally by BMI and age categories. The results demonstrate that an elevating prevalence of risk factors with older age and higher BMI implies that preventive strategies should be initiated in younger firefighters and aggressively promoted or mandated throughout firefighters’ careers.