The National Health and Nutrition
Examination Survey
U.S. DEPARTMENT OF HEALTH AND HUMAN SERVICES
Centers for Disease Cont...
National Health and Nutrition
Examination Surveys
NHES I 1960-62 18-79 years
NHES II 1963-65 6-11 years
NHES III 1966-70 1...
• Estimate the prevalence of
selected health conditions and
risk factors
• Describe awareness, treatment
and control of se...
• Study the relationship of diet and
health
• Explore emerging public health
issues
• Establish and maintain a
repository ...
• Multi-agency process
• Content solicitation posted on web
site
• Proposals evaluated by a set of
criteria
• NHANES Forum...
• CDC (7 Centers)
• NIH (12 Institutes)
• USDA (2 Research
Services)
• EPA
• FDA
• HUD
Collaborators
NHANES 1999-2004
Topics
• Bone density, osteoporosis
• Cardiovascular disease
• Diabetes
• Dietary intake, nutritional status
• Environment...
Topics
• Mental health
• Obesity, body
composition
• Oral health
• Reproductive health
• Respiratory disease
• Risk behavi...
Data Collection
Sample
• Civilian, non-institutionalized
household population
• Residents of all states and
the District of Columbia
• All...
Oversample
• African Americans
• Mexican Americans
• Adolescents aged 12-
19
• Older persons aged
60+
• Low income whites
...
Stage
4
SPs
Stage 1
Counties Stage 2
Segment
s
Stage 3
Households
NHANES information flow
Participant
Advance
letter
Informed consent
NCHS
Exams
Biologic specimens, DXA
scans, dermatology ...
OP96S033
OP96S034
NHANES Mobile Examination
Centers
• Standard environment
• Standard equipment
• Standard specimen collection
• Standard st...
Quality Assurance/Quality Control
• Outreach to assure high response
rates
• Instruments calibrated
• Edit checks
• Direct...
Information Technology
Architecture
h i
Household interviews
Westat
home office
T1
T1
NCHS
Labs
&
graders
T1
MEC
64kb
Fiel...
Survey data release schedule
• 2-year datasets
• Website data release
• 1999-2000 NHANES available
• 2001-2002 NHANES rele...
What About the Future?
Future Directions
National HANES
• Disclosure risk
• Content
• Special populations
• Sample design
Community Health and
Nu...
Overview of National Health and Nutrition Examination Survey
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Overview of National Health and Nutrition Examination Survey

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Overview of National Health and Nutrition Examination Survey

  1. 1. The National Health and Nutrition Examination Survey U.S. DEPARTMENT OF HEALTH AND HUMAN SERVICES Centers for Disease Control and Prevention National Center for Health Statistics anesanes
  2. 2. National Health and Nutrition Examination Surveys NHES I 1960-62 18-79 years NHES II 1963-65 6-11 years NHES III 1966-70 12-17 years NHANES I 1971-75 1-74 years NHANES II 1976-80 6 mo.-74 years HHANES 1982-84 6 mo.-74 years NHANES III 1988-94 2 mo. + NHANES 1999- All ages Survey Dates Ages
  3. 3. • Estimate the prevalence of selected health conditions and risk factors • Describe awareness, treatment and control of selected diseases • Monitor trends over time Goals of NHANES
  4. 4. • Study the relationship of diet and health • Explore emerging public health issues • Establish and maintain a repository of stored biologic specimens for future research Goals of NHANES
  5. 5. • Multi-agency process • Content solicitation posted on web site • Proposals evaluated by a set of criteria • NHANES Forum • CDC/NCHS Leadership • Institutional Review Board Planning NHANES
  6. 6. • CDC (7 Centers) • NIH (12 Institutes) • USDA (2 Research Services) • EPA • FDA • HUD Collaborators
  7. 7. NHANES 1999-2004
  8. 8. Topics • Bone density, osteoporosis • Cardiovascular disease • Diabetes • Dietary intake, nutritional status • Environmental exposures • Fitness, strength, activity • Hearing and balance • Infectious diseases, immunization • Kidney disease
  9. 9. Topics • Mental health • Obesity, body composition • Oral health • Reproductive health • Respiratory disease • Risk behaviors • Skin diseases • Vision
  10. 10. Data Collection
  11. 11. Sample • Civilian, non-institutionalized household population • Residents of all states and the District of Columbia • All ages • A nationally representative sample of about 5,000 individuals a year
  12. 12. Oversample • African Americans • Mexican Americans • Adolescents aged 12- 19 • Older persons aged 60+ • Low income whites • Pregnant women
  13. 13. Stage 4 SPs Stage 1 Counties Stage 2 Segment s Stage 3 Households
  14. 14. NHANES information flow Participant Advance letter Informed consent NCHS Exams Biologic specimens, DXA scans, dermatology images Screening In-home interviews Labs, Graders
  15. 15. OP96S033
  16. 16. OP96S034
  17. 17. NHANES Mobile Examination Centers • Standard environment • Standard equipment • Standard specimen collection • Standard staff procedures • Automated data collection • Minimal site-specific error
  18. 18. Quality Assurance/Quality Control • Outreach to assure high response rates • Instruments calibrated • Edit checks • Direct observations • Gold standard examiners • Continual data review
  19. 19. Information Technology Architecture h i Household interviews Westat home office T1 T1 NCHS Labs & graders T1 MEC 64kb Field office National Frame Relay Network
  20. 20. Survey data release schedule • 2-year datasets • Website data release • 1999-2000 NHANES available • 2001-2002 NHANES release in 2004
  21. 21. What About the Future?
  22. 22. Future Directions National HANES • Disclosure risk • Content • Special populations • Sample design Community Health and Nutrition Examination Surveys

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