What is the BRFSS and what is its primary use in public health?

• A. The Behavioral Risk Factor Surveillance System; used to collect health risk behavior and chronic disease data in the United States.
• B. The National Health Interview Survey; used to collect clinical trial data.
• C. The Surveillance of Acute Diseases; used to monitor infectious outbreaks.
• D. The National Health and Nutrition Examination Survey; used to track dietary intake.

Answer: (A)

At its heart, this item tests recognizing what the BRFSS is and what it’s used for in public health. The Behavioral Risk Factor Surveillance System is a state-based telephone survey coordinated by the CDC that gathers information on health risk behaviors and the prevalence of chronic diseases across the United States. It focuses on behaviors that affect health—like smoking, physical activity, diet, alcohol use, and seat belt use—and self-reported diagnoses such as diabetes, heart disease, or hypertension. The data produce prevalence estimates at state and national levels and track trends over time. Public health officials rely on these results to identify at-risk groups, plan and evaluate programs, monitor progress toward goals, and guide resource allocation.

Other options refer to different surveys or purposes. For example, some are about clinical trials or involve laboratory measurements, while BRFSS emphasizes behavioral risk factors and self-reported chronic conditions rather than experimental data or in-person clinical testing. BRFSS is specifically designed to provide ongoing, population-level information about health behaviors and chronic diseases in the United States, which is why it’s the best answer.