Behavior Risk Factor Surveillance System (BRFSS) – USA
In 1984, the Centers for Disease Control and Prevention (CDC) initiated the state-based Behavioral Risk Factor Surveillance System (BRFSS) to collect prevalence data on risk behaviors and preventive health practices that affect health status. By this time, 15 states participated in monthly data collection. In 1994, all states, the District of Columbia, and the three territories were participating in the BRFSS. Actually, the BRFSS, administered and supported by the Division of Adult and Community Health, National Center for Chronic Disease Prevention and Health Promotion, CDC, is a state-based system used to gather information through a telephone surveys conducted by the health departments of all 50 states, the District of Columbia, Puerto Rico, the Virgin Islands, and Guam, with technical and methodological assistance provided by CDC. Approximately 430,000 interviews of adults were completed in 2007, making BRFSS the largest health survey conducted by telephone in the world.