NHIS-CAM Resources for Data Analysis

Resources for NHIS-CAM Data Analysis

The pages below provide in-depth information on how to access National Health Interview Survey CAM survey data, survey methods, the full survey instrument, SAS and SPSS codebooks to assist with data analysis, and more.

Request an NHIS-CAM Supplement dataset: A merged dataset of NHIS Child and NHIS Child CAM Supplement data files with the variables on the website’s data query is available at no cost. All indicators in the NHIS-Child CAM dataset can also be viewed in our interactive data query. The "details" link on each data query page provides more information on each variable's numerator, denominator, revisions, methods notes, treatment of unknown variables, and history. Please sign and attach the user agreement form when submitting your request.

Survey methodology: The following resources detail the 2012 National Health Interview Survey's methodology. The NHIS’s administration processes are detailed below in a one-page diagram created by the CAHMI. Additional documents detail the methodological details of NHIS survey sampling, data collection procedures, variable coding and analytic issues, as well as the development of the CAM Supplement. More information is available on the CDC website.
2012 NHIS Sampling and Administration 2012 NHIS Survey Description Learn more about the CAM Supplement development Survey Design and Estimation Report 2006-2015

Full-length NHIS-Child CAM Supplement survey instrument: The National Health Interview Survey is conducted using Computer-Assisted Personal Interviewing. The full length instruments are available in English and Spanish.

2012 NHIS Questionnaire Reference Guide
2012 NHIS Production Instrument Flow
2012 NHIS Household Composition Questionnaire

English Spanish

2012 NHIS Family Questionnaire

English Spanish

2012 NHIS Sample Child Questionnaire

English Spanish

2012 NHIS Child CAM Questionnaire

English Spanish

SPSS codebook: This codebook provides documentation and SPSS program statements used in the development of variables and subgroups featured in the data query for the 2012 NHIS-Child CAM Supplement. Its purpose is to serve as a resource for researchers and analysts interested in understanding how these measures are conceptualized, constructed, and interpreted. The codebook was developed by the CAHMI to assist with data analysis of the National Health Interview Survey Child CAM Supplement.

2012 NHIS Child CAM Codebook for SPSS

More survey data analysis help: The NCHS document Variance Estimation and Other Analytic Issues, NHIS 2006-2012 provides methods for analyzing NHIS data including variance estimation, subsetted data analysis, merging data files and combining years of data with examples of SUDAAN, Stata, SPSS and SAS codes. Additional information is available on Design and Estimation for the NHIS, 2006-2015.