1. Overview of Proposal Process for NCHS Restricted-Use Data
Rick Rogers
IBS Population Program &
Department of Sociology

2. Past Projects that Used Restricted NHIS Data

3. Current Project Early Life Mortality in the U.S.
NHIS-LMFs
246,464 records, 734 deaths
Restricted-use variables
Early life deaths (ages 0-17)
Exact dates (rather than quarters)
Age, day, month of birth, interview, and death
Detailed cause of death (beyond 10 categories)
New mortality linked files, when available
Geographic detail
50 states rather than 4 regions
Age top coding usually at ages 85+
Quarter of birth, interview, and death may be too broad for younger ages.
Some causes of death are perturbed
New matches, available this fall, will first be accessible only in an RDC
South generally experiences higher risk of death

4. Accessing NCHS Restricted-Use Data
Submit proposal to NCHS for review
Once approved, request data extraction
$2,500 fee for more extensive extraction
Pass on-line training to access data
Access data
Online system
RDC
At NCHS in Hyattsville, MD
At another RDC (SSS required)
Output is reviewed by NCHS staff, then ed
Disclosure review for manuscripts

5. Thank you! Project Sites & Collaborators
University of Colorado Boulder
Andrea Tilstra
University of North Carolina
Bob Hummer, Liz Lawrence, David Braudt, Illiya Gutin
University of Texas
Dan Powers, Gracia Sierra
We thank the NICHD (grant 1R01HD A1) for research support, the NICHD-funded University of Colorado Population Center (grant PHD066613) and the NICHD-funded Carolina Population Center (grant R24 HD050924) for administrative support, and the National Center for Health Statistics for collecting the data and making the restricted-use linked files available to the research public.