included questions about cancer screenings, diet, exercise, smoking, sun exposure, and family history. Occupational supplement were fielded in 2010 and 2015, and sponsored by the National Institute for Occupational Safety and Health (NIOSH). These supplement included questions about work-related health conditions, work organization factors, and occupational psychosocial and physical/chemical exposures. A full list of supplements can be found on the NHIS website. Publications The National Health Interview Survey is commonly the subject of analysis in articles on health status and health behaviors in research journals such as Obesity, Journal of the American Dietetic Association, Health Services Research, and the American Journal of Public Health. A number of CDC reports, including Healthy People, rely on NHIS to monitor health estimates. The Department of Health and Human Services (HHS), Office of the Assistant Secretary for Planning and Evaluation (ASPE) tracks health insurance coverage in the United States using the NHIS. The National Center for Health Statistics publishes periodical statistical summaries, compiling the results of the most recent NHIS and trending those statistics over time for certain groups. NCHS/CDC also publish statistical reports on current topics of interest, and shorter data briefs. For example, NIOSH has published several peer-reviewed journal articles from the 2010 and 2015 NHIS Occupational Health Supplement results. Methodology Survey design Noninstitutional civilian Americans (both citizens and non-citizens) are sampled by household, allowing for analysis of medical behavior at the familial-level. After a household has been sampled, one adult and one child (if any are present) is selected to complete the Sample Adult and Sample Child components of the survey. In years without budget cuts, approximately 35,000 households containing 87,500 individuals are included. NHIS follows a multi-stage area probability design, meaning that geographic areas – rather than unique households – are sampled first, and then within those selected areas, residences are sampled. Unlike surveys with a panel or longitudinal design, the entirety of data collected from each household occurs from a single interview lasting about an hour. The complex survey design must be analyzed with software capable of handling survey data that was not obtained from a simple random sample, such as R, SUDAAN, SAS, Stata, SPSS, and VPLX. In addition to appropriately weighting households that might have been over-represented in the raw data (due to oversampling of populations of interest), survey analysis packages are needed to employ the Taylor-series linearization technique to correctly calculate the standard errors and confidence