The National Health Interview Survey (NHIS) has monitored the health of the nation since 1957. NHIS data on a broad range of health topics are collected through personal household interviews. Data for this dataset has been computed by personnel in CDC’s Division for Heart Disease and Stroke Prevention (DHDSP). This dataset is one of the datasets provided by National Cardiovascular Disease Surveillance System. The system is designed to integrate multiple indicators from many data sources to provide a comprehensive picture of the public health burden of CVDs and associated risk factors in the United States. The data are organized by location (national, state, county, and selected sites) and indicator, and they include CVDs (e.g., heart failure) and risk factors (e.g., hypertension). The data can be plotted as trends and stratified by age group, sex, and race/ethnicity.
The survey is conducted as a cross-sectional household interview survey continuous throughout each year from a representative simple of households and noninstitutional group quarters, designed as a decennial census. In the current survey was implemented for the first time an oversampling of Black, Asian and Hispanic population as well as of adults aged 65+ of these races. NHIS Supplements provide details for public health data needs, the first supplement was designed to track the goals of Healthy People 2020. This information is used by the Department of Health and Human Services to track that the national health objectives are accomplished, it is also used for research to address health problems and improve access to appropriate health care.