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Behavioral Risk Factor Surveillance System (BRFSS)

Kathryn Atwater Prairie View A & M University Dietetic Internship December 4, 2012. Behavioral Risk Factor Surveillance System (BRFSS). Background. Established: 1984 State-based system of health surveys via telephone Health risk behaviors Preventative health practices Health care access.

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Behavioral Risk Factor Surveillance System (BRFSS)

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  1. Kathryn Atwater Prairie View A & M University Dietetic Internship December 4, 2012 Behavioral Risk Factor Surveillance System (BRFSS)

  2. Background • Established: 1984 • State-based system of health surveys via telephone • Health risk behaviors • Preventative health practices • Health care access

  3. Background Cont’d… • >350,000 adults interviewed/year • Used to: • Identify emerging health issues • Establish and track objectives • Develop and evaluate public health policies & programs

  4. Main Objectives • Address health disparities • Monitor state-level prevalence of major behavioral risks among adults associated with premature morbidity and mortality • Collect data on actual behaviors • Establish interventions

  5. Survey Conduction • CDC assisted Health Departments • Monthly cross-sectional telephone survey per state • Adults >18 yrs • Standardized questionnaire: • Preventable chronic diseases • Injuries • Infectious diseases

  6. Survey Components • Core Required Modules • Fixed • Rotating • Emerging • Optional Modules • Detailed questions on a core topic • Based on state’s present data needs

  7. Survey Conduction Cont’d… • What is done with after all the data is collected?

  8. BRFSS Risk Categories

  9. Impact of Cell Phones • Increasing in popularity over landlines • Allows increased demographic • Changed “Weighting” Methods for Data Analysis: • Previous Method: Post Stratification • New Method: Raking

  10. Impact of Cell Phones cont’d… • Post stratification • Adjusted data to known proportions of age, race and ethnicity, gender, and geographic region • Raking (est. 2006) • Adds education level, marital status, and home ownership • Reduces bias • Increase representativeness of estimates

  11. Demographic Variables

  12. BFRSS in Summary • State-based statistical telephone survey by CDC • Uses information on: • Health risk behaviors • Access to healthcare • Current preventative measures • Used to: • Identify emerging health issues • Establish and track objectives • Develop/update current health policies to reflect trends

  13. Research Studies

  14. Diet and Physical Activity Behaviors among Americans Trying to Lose Weight: 2000 Behavioral Risk Factor Surveillance SystemBish, C. L., Blanck, H. M., Serdula, M. K., Marcus, M., Kohl, H. W. and Khan, L. K.Obesity: A Research Journal. 2005;18(3) 596-607

  15. Objectives • Examine prevalence and relations of U.S. adults attempting to lose weight • Describe methods for weight loss • Assess ways to fulfill recommendations for weight control e.g. consuming fewer calories and physical activity

  16. Design • Conducted in all 50 states, the District of Columbia, and Puerto Rico • Included: • Adults 18 years of age and older • 18,450 participants • 1 per household • 164,187 included in final analysis based on criteria

  17. Results (all categories include those attempting to lose weight)

  18. Health Care Access Among U.S. Adults Who Drink Alcohol Excessively: Missed Opportunities for PreventionMcGuire LC, Strine TW, Okoro CA, Ahluwalia IB, Ford ES.Preventing Chronic Disease. 2006; 3(2) A53

  19. Objective • 2002 BRFSS data to assess health care access and the use of clinical preventive services in U.S. adults by alcohol consumption status, including those who drink excessively

  20. Design • 50 states, Washington, DC, and the territories of Guam, Puerto Rico, and the U.S. Virgin Islands • 246,964 participants; 404 excluded • Assessments in relation to • Alcohol consumption • Health insurance status • Recent medical checkup (past 2 years)

  21. Results • Prevalence of drinking: • General population: 17% • Individuals with health insurance: 15% • Individuals with a recent check-up: 14% • Excessive drinkers: • 79% had health insurance • 78% had a recent check-up

  22. Results Cont’d… • Excessive drinkers with lowest rate of health insurance: Young, Hispanic, low education, and unemployed • Most excessive drinkers: • Insured • Recent medical check-up • Low screening rates possibly due to missed opportunities • More research needed

  23. Questions??Thank-you!

  24. References • Town M, Naimi TS, Mokdad AH, Brewer RD. Health care access among U.S. adults who drink alcohol excessively: missed opportunities for prevention. Prev Chronic Dis. 2006 April; 3(2): A53 • Bish, C. L., Blanck, H. M., Serdula, M. K., Marcus, M., Kohl, H. W. and Khan, L. K., Diet and Physical Activity Behaviors among Americans Trying to Lose Weight: 2000 Behavioral Risk Factor Surveillance System. Obesity Research. 2005 Mar; 13(3): 596–607. doi: 10.1038/oby.2005.64 • CDC. Behavioral Risk Facto Surveillance System (BRFSS). Updated Aug 2012. Office of Surveillance, Epidemiology, and Laboratory Services. 25 Nov 2012. http://www.cdc.gov/brfss/

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