The National Post-acute and Long-term Care Study (NPALS) is a biennial study of major post-acute and long-term care providers and their services users. Seven provider settings are included. NPALS collects survey data on the residential care community and adult day services sectors, and uses administrative data (available from CMS) for home health, nursing home, hospice, inpatient rehabilitation, and long-term care hospital sectors.
The goals of the study are to: estimate the supply of paid, regulated post-acute and long-term care services providers; estimate key policy-relevant characteristics and practices of these providers; estimate the number of post-acute and long-term care services users; estimate key policy-relevant characteristics of these users; produce national and state estimates where feasible; compare across provider sectors; and monitor trends over time.

Through its data linkage program, NCHS has been able to expand the analytic utility of the data collected from the National Hospital Care Survey (NHCS) by augmenting it with administrative data from the Department of Veterans Affairs (VA). NHCS data have been linked to VA administrative data containing information on details of active-duty service in the United States uniformed services (such as branch of service and era of active-duty service) and VA benefit program utilization including VA health care, service-connected disability compensation, pension, VA guaranteed home loan program, life insurance, education, training and veteran readiness (vocational rehabilitation), and employment benefit programs.

NCHS has linked various surveys with the Medicaid Analytic eXtract (MAX) files collected from the Centers for Medicare & Medicaid Services (CMS). Linkage of the NCHS survey participants with the CMS Medicaid MAX data provides the opportunity to study changes in health status, health care utilization and expenditures in low-income families with children and the elderly U.S. populations.

NCHS has linked 2005-2018 National Health Interview Survey (NHIS) and 2005-2018 National Health and Nutrition Examination Survey (NHANES) to Department of Veterans Affairs (VA) administrative data through fiscal year 2020. Linkage of NCHS survey participants with VA administrative data provides the opportunity to examine a wide range of health-related topics for Veterans, including Veteran status and utilization of VA benefit programs.

Through its data linkage program, NCHS has been able to expand the analytic utility of the data collected from the National Hospital Care Survey (NHCS) by augmenting it with Medicaid and Children’s Health Insurance Program (CHIP) claims data collected by the Centers for Medicare & Medicaid Services (CMS) Transformed Medicaid Statistical Information System (T-MSIS). Linkage of NHCS patient data with T-MSIS enrollment and claims data creates a new data resource that can support research studies focused on a wide range of patient health outcomes and the association of means-tested government insurance programs with health and health outcomes.

The National Post-acute and Long-term Care Study (NPALS) is a biennial study of major post-acute and long-term care providers and their services users. Seven provider settings are in included. NPALS collects survey data on the residential care community and adult day services sectors, and uses administrative data (available from CMS) for home health, nursing home, hospice, inpatient rehabilitation, and long-term care hospital sectors.
The goals of the study are to: estimate the supply of paid, regulated post-acute and long-term care services providers; estimate key policy-relevant characteristics and practices of these providers; estimate the number of post-acute and long-term care services users; estimate key policy-relevant characteristics of these users; produce national and state estimates where feasible; compare across provider sectors; and monitor trends over time.

NCHS has linked various surveys with Medicaid enrollment and claims records collected from the Centers for Medicare & Medicaid Services (CMS) Transformed Medicaid Statistical Information System (T-MSIS). Linkage of the NCHS survey participants with the CMS T-MSIS data creates a new data resource that can support research studies focused on a wide range of patient health outcomes and the association of means-tested government insurance programs on health and health outcomes.

This dataset includes all births for a given year and includes all items released in the public-use file. Additional information in this file includes state and county of residence (cities with a population of 100,000 or greater) and exact date of birth (which includes day of month, month, and year).

The National Electronic Health Records Survey (NEHRS) is an annual survey of non-federally employed, office-based physicians practicing in the United States (excluding those in the specialties of anesthesiology, radiology, and pathology). NEHRS began in 2008 and was originally designed as an annual mail supplement to the National Ambulatory Medical Care Survey (NAMCS). Prior to 2012, NEHRS was a supplement to the NAMCS, referred to as the NAMCS Electronic Medical Records Supplement. The annual data collected was similar to NEHRS and may be analyzed as a distinct dataset.
Data from the supplement can be used to produce state and national estimates of EHR adoption and capabilities, burden associated with EHRs, and progress physicians have made towards meeting the policy goals of the HITECH Act.
Please refer to the following link for the 2008—2011 NAMCS Electronic Medical Records Supplemental questionnaire and data dictionary: https://www.cdc.gov/nchs/nehrs/questionnaires.htm.

The National Health and Nutrition Examination Survey (NHANES) is designed to assess the health and nutritional status of adults and children in the United States. The survey is unique in that it combines interviews with standardized physical examinations and laboratory tests.

NHANES was conducted on a periodic basis from 1971 to 1994. In 1999 NHANES became continuous. Every year, approximately 5,000 people of all ages are interviewed in their homes and complete the health examination conducted in a mobile examination center.

The NHANES interview includes demographic, socioeconomic, dietary, and health-related questions. The examination component consists of medical, dental, and physiological measurements, as well as the collection of biospecimens, such as blood and urine for laboratory testing.

This set of restricted data contains indirect identifying and/or sensitive information collected in continuous NHANES since 1999. Please refer to the links below for additional data available from NHANES:

• NHANES Public Use Data at: https://wwwn.cdc.gov/nchs/nhanes/Default.aspx


• NHANES Genetic Restricted Data at: https://data.cdc.gov/dataset/National-Health-and-Nutrition-Examination-Survey-N/hdx4-e4uu


• NHANES Restricted Data: Prior to 1999 at: https://data.cdc.gov/dataset/National-Health-and-Nutrition-Examination-Survey-N/ic32-yq9m


• NHANES National Youth Fitness Survey (NNYFS) Restricted Data at: https://data.cdc.gov/dataset/3-NHANES-National-Youth-Fitness-Survey-NNYFS-Restr/5u84-m4rs

Please refer to the NHANES Analytic Guidelines at: https://wwwn.cdc.gov/nchs/nhanes/analyticguidelines.aspx and the on-line NHANES Tutorial at: https://wwwn.cdc.gov/nchs/nhanes/tutorials/default.aspx for further details on the survey design, implementation, and data analysis.