BRFSS and CHAS - SCDHEC · 2019-12-20 · CHAS • Advantages • Weighted for state population •...
Transcript of BRFSS and CHAS - SCDHEC · 2019-12-20 · CHAS • Advantages • Weighted for state population •...
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BRFSS and CHASChelsea Lynes, MSPH
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Behavioral Risk Factor Su rve illa n ce Syst e m (BRFSS)• Random-digit dialed survey of non-
institutionalized adults (18+)• Measures health behaviors and outcomes• Funded by CDC• In SC since 1984• Cell phones introduced in 2011
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BRFSS• Advantages
• Weighted for state population• Can compare to other states & nation• Multiple years of data (1984-2010; 2011-present)• Stratification possibilit ies
• Limitations• Single year estimates unavailable for small areas• Self-report & social desirability biases
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BRFSS: 2015 data exam ple
0102030405060708090
Underweight Normal weight Overweight Obese
Perc
ent (
%)
BMI Category
Exercise in past 30 days by body mass index category
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BRFSS: 2015 data exam ple
0
10
20
30
40
50
Diabetes Hypertension Heart attack
Chronic conditions by race/ethnicity
Non-Hispanic White Non-Hispanic Black Other
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BRFSS: 2015 data exam ples• Ever had any HPV vaccination
• 7.6% (±1.1%) of males• 18.5% (±1.2%) of females
• Among those who lived with a problem drinker/alcoholic before they were 18,
• 22.6% (±2.2%) of males reported binge drinking in past 30 days
• 12.4% (±1.3%) of females reported binge drinking in past 30 days
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To request BRFSS data• Contact Chelsea Lynes
• [email protected]• 803-898-1047
• Available• Data sets
• Formal request process• Up to three weeks to receive
• Simple statistics (frequency tables)• Informal request process• Done within one week
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BRFSS• All South Carolina specific surveys available
on DHEC website (http:/ /www.scdhec.gov/Health/SCPublicHealthStatisicsMaps/BehavioralRiskFactorSurveys/CoreComponentsOfSurvey/)
• CDC BRFSS website: (http:/ /www.cdc.gov/brfss/)
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Child ren’s Health Assessm ent Su rvey (CHAS)• BRFSS respondents who are eligible
• indicate they have children living in their home • consent to completing CHAS interview
• Called back within one week of BRFSS interview
• Administered in SC since 2012
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CHAS• Advantages
• Weighted for state population• Unique to SC• BRFSS and CHAS responses can be linked
• Limitations• BRFSS and CHAS respondents not necessarily the
same person• Self-report & social desirability biases• Sample size (<10% of BRFSS)• Only statewide estimates available
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CHAS: 2015 data exam ple
05
101520253035404550
Ages 2-4 Ages 5-9 Ages 10-14 Ages 15-17
Perc
ent (
%)
Obesity by age group
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CHAS: 2015 data exam ple
0102030405060708090
100
Public school Private school Home schooled Not in school
School type by gender
Boys Girls
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To request CHAS data• Contact Chelsea Lynes
• [email protected]• 803-898-1047
• Available• Data sets
• Formal request process (linked to BRFSS or not)• Up to three weeks to receive
• Simple statistics (frequency tables)• Informal request process• Done within one week
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Thank you!
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