1984 to present; not all states participated prior to 2001
Mode of Collection
Sample survey: telephone interview (cell and land line).
The Behavioral Risk Factor Surveillance System (BRFSS) is a state-based system of telephone health surveys that collects information on health risk behaviors, preventive health practices, and health care access primarily related to chronic disease and injury. The survey was established in 1984. Data are collected monthly in all 50 states, the District of Columbia, Puerto Rico, the U.S. Virgin Islands, and Guam.
U.S. civilian noninstitutionalized population ages 18 years and older residing in households.