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The Behavioral Risk Factor Surveillance System is a United States national health survey that looks at behavioral risk factors. It is administered by telephone and is the world's largest telephone survey. Individual states can add their own questions to the survey instrument, which consists of a core set of questions on certain topics like car safety, obesity, or exercise. States get funding from the federal government to administer these questionnaires, and they pay for the additional quest ...
Wikipedia - [full article]
Resources
- BRFSS (Centers for Disease Control and Prevention)

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