The National Hospital Discharge Survey (NHDS), conducted from 1965 to 2010, was a national probability survey designed to meet the need for information on characteristics of inpatients discharged from non-Federal short-stay hospitals in the United States. From 1988-2007 the NHDS collected data from a sample of approximately 270,000 inpatient records acquired from a national sample of about 500 hospitals. From 2008 to 2010 the sample size was reduced to 239. Only hospitals with an average length of stay of fewer than 30 days for all patients, general hospitals, or children’s general hospitals are included in the survey. Federal, military, and Department of Veterans Affairs hospitals, as well as hospital units of institutions (such as prison hospitals), and hospitals with fewer than six beds staffed for patient use, are excluded.
Beginning in 1988, two data collection procedures have been used in the survey. The medical abstract form and the automated data tapes contain items that relate to the personal characteristics of the patient. These items include age, sex, race, ethnicity, marital status, and expected sources of payment. Administrative items such as admission and discharge dates (which allow calculation of length of stay), as well as discharge status are also included. Medical information about patients includes diagnoses and procedures coded to the International Classification of Diseases, 9th Revision, Clinical Modification (ICD-9-CM).

NCHS has linked data from various surveys with 1999-2013 Medicare program enrollment and health care utilization and expenditure data from the Centers for Medicare & Medicaid Services (CMS). Linkage of the NCHS survey participants with the CMS Medicare data provides the opportunity to study changes in health status, health care utilization and costs, and prescription drug use among Medicare enrollees. Medicare is the federal health insurance program for people who are 65 or older, certain younger people with disabilities, and people with End-Stage Renal Disease.

The 2010 National Survey of Residential Care Facilities (NSRCF) is a first-ever national probability sample survey that collects data on U.S. residential care providers, their staffs and services, and the people they serve. It is designed to provide national estimates of the number of residential care facilities operating in the United States, the number of residents receiving care, and the characteristics of both the facilities and their residents. NSRCF was conducted between March and November 2010. All residential care facilities that participated in the survey were places that were licensed, registered, listed, certified, or otherwise regulated by the state and that had 4 or more licensed, certified, or registered beds, provided room and board with at least two meals a day, around-the-clock on-site supervision, and help with personal care such as bathing and dressing or health related services such as medication management. These facilities served a predominantly adult population and had at least one current resident. Facilities licensed to serve the mentally ill or the developmentally disabled populations exclusively were excluded from the survey.

The National Hospital Discharge Survey (NHDS), conducted from 1965 to 2010, was a national probability survey designed to meet the need for information on characteristics of inpatients discharged from non-Federal short-stay hospitals in the United States. From 1988-2007 the NHDS collected data from a sample of approximately 270,000 inpatient records acquired from a national sample of about 500 hospitals. From 2008 to 2010 the sample size was reduced to 239. Only hospitals with an average length of stay of fewer than 30 days for all patients, general hospitals, or children’s general hospitals are included in the survey. Federal, military, and Department of Veterans Affairs hospitals, as well as hospital units of institutions (such as prison hospitals), and hospitals with fewer than six beds staffed for patient use, are excluded.

Beginning in 1988, two data collection procedures have been used in the survey. The medical abstract form and the automated data tapes contain items that relate to the personal characteristics of the patient. These items include age, sex, race, ethnicity, marital status, and expected sources of payment. Administrative items such as admission and discharge dates (which allow calculation of length of stay), as well as discharge status are also included. Medical information about patients includes diagnoses and procedures coded to the International Classification of Diseases, 9th Revision, Clinical Modification (ICD-9-CM).

The NCHS National Post-acute and Long-term Care Study (NPALS) collects data on post-acute and long-term care providers every two years. The goal is to monitor post-acute and long-term care settings with reliable, accurate, relevant, and timely statistical information to support and inform policy, research, and practice. These data tables provide an overview of the geographic, organizational, staffing, service provision, and user characteristics of paid, regulated long-term and post-acute care providers in the United States. The settings include adult day services centers, home health agencies, hospices, inpatient rehabilitation facilities, long-term care hospitals, and nursing homes.

The 2010 National Survey of Residential Care Facilities (NSRCF) is a first-ever national probability sample survey that collects data on U.S. residential care providers, their staffs and
services, and the people they serve. It is designed to provide national estimates of the number of residential care facilities operating in the United States, the number of residents receiving care, and the characteristics of both the facilities and their residents. NSRCF was conducted between March and November 2010. All residential care facilities that participated in the survey were places that were licensed, registered, listed, certified, or otherwise regulated by the state and that had 4 or more licensed, certified, or registered beds, provided room and board with at least two meals a day, around-the-clock on-site supervision, and help with personal care such as bathing and dressing or health related services such as medication management. These facilities served a predominantly adult population and had at least one current resident. Facilities licensed to serve the mentally ill or the developmentally disabled populations exclusively were excluded from the survey.

List of footnotes, notes, and source information for NHIS Adult Summary Statistics. Each row of this dataset contains the accompanying text for a footnote found in the NHIS Adults Summary Statistics Dataset.

Interactive Summary Health Statistics for Children provide annual estimates of selected health topics for children under age 18 years based on final data from the National Health Interview Survey.
Search, visualize, and download these and other estimates from over 120 health topics with the NCHS Data Query System (DQS), available from: https://www.cdc.gov/nchs/dataquery/index.htm.

The Research and Development Survey (RANDS) is a series of cross-sectional surveys using probability-sampled commercial survey panels. The seventh round of RANDS (RANDS 7) was administered by NORC at the University of Chicago using the AmeriSpeak Panel from November 3, 2022 to December 12, 2022. RANDS 7 contained the embedded probe questions and experiments as in previous rounds of RANDS. It included questions on firearm safety, chronic health conditions, and health and civic behaviors, and questions related to gender identity, traumatic brain injury and long symptoms of coronavirus disease (COVID-19). RANDS 7 has a known survey sampling design and can be used to produce nationally and sub-nationally representative estimates.

Interactive Summary Health Statistics for Adults provide annual estimates of selected health topics for adults aged 18 years and over based on final data from the National Health Interview Survey.
Search, visualize, and download these and other estimates from over 120 health topics with the NCHS Data Query System (DQS), available from: https://www.cdc.gov/nchs/dataquery/index.htm.