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Jane F. Gentleman, Ph.D., Director Division of Health Interview Statistics

The rich multivariate data of the National Center for Health Statistics’ National Health Interview Survey. Jane F. Gentleman, Ph.D., Director Division of Health Interview Statistics National Center for Health Statistics. National Center for Health Statistics (NCHS). Part of CDC

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Jane F. Gentleman, Ph.D., Director Division of Health Interview Statistics

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  1. The rich multivariate data of theNational Center for Health Statistics’National Health Interview Survey Jane F. Gentleman, Ph.D., Director Division of Health Interview Statistics National Center for Health Statistics

  2. National Center for Health Statistics (NCHS) • Part of CDC • Located in Hyattsville, Maryland • The Fed Govt’s health statistics agency • The principal agency that produces general-purpose health data

  3. National Health Interview Survey (NHIS) • In the field since 1957 • In-person household survey of non-institutionalized civilian population • Fielded by Census Bureau since 1957 • Microdata released annually online Available back to 1962/63 • Research Data Centers with NCHS data: At NCHS in Hyattsville At CDC home in Atlanta At 9 Census RDCs

  4. Core topics covered • Health status • Utilization of health care services • Health insurance coverage • Health-related behaviors (e.g., smoking, alcohol) • Risk factors • Injuries & poisonings • Demographic & socioeconomic data

  5. Some returning major supplements Cancer Control 2000 (20 mins) 2003 (5 mins) 2005 (20 mins) 2008 (5 mins) 2010 (20 mins) Complementary & Alternative Medicine 2004, 2008, 2012

  6. And now we release NHIS paradata too • Paradata: Data about the survey data collection process • Sources of NHIS paradata: • Blaise instrument in laptop (audit trails, keystrokes) • Contact History Instrument in laptop (info about each contact attempt) • Back of NHIS questionnaire (comments from interviewer)

  7. A few special things about the NHIS • Analysis of NHIS data requires special software. • Income imputation is needed. • Budget problems have forced the sample size to decrease.

  8. Number of persons in NHIS sample,1962/63 - 2007

  9. Use of the NHIS to monitor objectives of DHHS’ Healthy People Program • More than 110 Healthy People objectives monitored since 1995 • NHIS is used to monitor more HP2010 objectives than any other source

  10. Just a few of the HP2010 topics monitored • Access to quality health services • Arthritis, osteoporosis, & chronic back conditions • Cancer • Diabetes • Disability • Physical activity & fitness

  11. The NHIS Early Release Program • Two quarterly reports: • 15 key health indicators • More detail on health insurance • One biannual report: • Cell phone usage

  12. 15 key health indicators • Lack of health insurance coverage & type of coverage • Usual place to go for medical care • Obtaining needed medical care • Receipt of flu vaccination\ • Receipt of pneumoccal vaccination • Obesity • Leisure-time physical activity • Current smoking • Leisure-time physical activity • Current smoking • Alcohol consumption • Human immunodeficiency virus testing • General health status • Personal care needs • Serious psychological distress • Diagnosed diabetes • Asthma episodes and current asthma

  13. 15 key health indicators, cont. • Alcohol consumption • HIV testing care • General health status • Personal care needs • Serious psychological distress • Diabetes • Asthma

  14. Prevalence of current smoking among adults aged 18+, 1997 to Quarter 1, 2007

  15. Percentage of Children Under Age 18 Who Lacked Health Insurance: U.S. 1997- September 2008 Percent For at least part of the past year At the time of interview For more than a year 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 (Jan.–Sept.) Source: NHIS Early Release Program

  16. Percentage of Adults Age 18-64 Who Lacked Health Insurance:  U.S. 1997- September 2008 Percent For at least part of the past year At the time of interview For more than a year 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 (Jan.–Sept.) Source: NHIS Early Release Program

  17. Percentage of Adults Age 18-64 Who Lacked Health Insurance by Employment Status: U.S. 1997- September 2008 Percent Unemployed Employed 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 (Jan.–Sept.) Source: NHIS Early Release Program

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