Sample Sizes: Number of HH and Personal Records in IHIS, by year.
Sample Design: Overview of the NHIS sample design.
Sampling Weights: Overview of sampling weights in the IHIS.
Variance Estimation: General guidance on analysis and variance estimation
with IHIS data.
Healthy People 2020: Selected Variables to Monitor the Healthy People 2020 Objectives
Summary and Key Insurance Variables: Guidance on Using IHIS Insurance Variables
Private Insurance Definitions: Changes in the NHIS Definition of Private Insurance
Insurance Data Collection: Changes in the NHIS Collection of Data on Insurance
Condition Records and Condition Variables: Overview of individual-level variables constructed from pre-1997 condition records
Injury and Poisoning Supplement Variables: Overview of the Injury and Poisoning Supplement
Adult Functioning and Disability & Quality of Life Supplements: Overview of variables included in the AFD and QOL supplements
Variables to Monitor the Affordable Care Act: Variables designed to monitor the implementation of the Affordable Care Act
Occupation and Industry Variables: Harmonized occupation and industry classifications for 1969 to the present
Link NHIS Public Use Files to IHIS Data: Link additional variables from the original NHIS public use files (that are not yet in the IHIS system) to an IHIS data extract.