How are BRFSS data collected?

  • BRFSS data are collected through random-digit-dialed (RDD) landline telephone and manually dialed cell telephone interviews conducted by trained interviewers in the University of Missouri-Columbia Health and Behavioral Risk Research Center.
  • Data are collected on a monthly basis throughout the year, with approximately one-twelfth of the annual total collected each month.
  • Missouri uses computer-assisted telephone interviewing (CATI) to create a smooth-flowing, menu-driven interview.

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