2. My Applications

National Center for Health Statistics

About the Agency

The National Center for Health Statistics is the nation's source for official health statistics. As a principle statistical agency, NCHS collects, analyzes, and shares health data and statistics that are timely, accurate, and relevant. 

NCHS provides important data and statistics to identify health problems. Policymakers, public health professionals, and others use our data and statistics to develop and manage policies and programs to address these problems. 

Our statistics: 

  • Measure the health of the U.S. population and subpopulations 
  • Monitor trends in health characteristics Identify differences in health conditions and behaviors across groups 
  • Document access to and use of the healthcare system 
  • Support biomedical, public health, and health services research 
  • Provide data to guide public policies and programs 
  • Track the impact of major policy initiatives 

For more information on National Center for Health Statistics (NCHS) products and programs, email RDCA@cdc.gov.

Agency Application Details

Under Review
6% (10 / 173)
Changes Needed
18% (32 / 173)
Approved
72% (124 / 173)
Not Approved
4% (7 / 173)
Project Title ID Requested Data Application Received
Hb thresholds for anemia across the lifecycle 1-90y 56425 National Health and Nutrition Examination Survey (NHANES) Restricted Data: 1999 to Present
Turning Policy into Health: Translating Insurance Affordability Subsidies into Better Healthcare Access 56108 National Health Interview Survey
National Electronic Health Records Survey of U.S. Physicians 56030 National Electronic Health Records Survey, Restricted data: 2012-2015, 2017-2019, 2021, 2024
2024 National Electronic Health Records Survey (NEHRS) Linked to 2023 Quality Payment Program (QPP) Data, Restricted-use data
Identifying Individual-, County-, and State-Level Correlates of Foreign-Born Adults’ Cancer Screening Behaviors in the United States 55930 National Health Interview Survey
Chemical exposures and their impact on early-onset chronic diseases and cancers in US women and men 8383 NCHS Survey Data Linked to National Death Index (NDI) Mortality Files
NCHS Survey Data Linked to Centers for Medicare & Medicaid Services (CMS) Medicaid Enrollment and Claims Files
Universal Free School Meals for America's Youth: Evidence from the Community Eligibility Provision on Food Spending, Diet Quality and Health 8243 National Health and Nutrition Examination Survey (NHANES) Restricted Data: 1999 to Present
Hemoglobin adjustments for elevation in the US population 8233 National Health and Nutrition Examination Survey (NHANES) Restricted Data: 1999 to Present
Examining the Impact of U.S. Child Marriage Laws on Maternal and Child Health 8109 NCHS - All-County Natality File with Exact Date of Birth
Developing Intrinsic Capacity Score for predicting 20-year health outcomes 8048 National Health and Nutrition Examination Survey (NHANES) Restricted Data: 1999 to Present
Multi-Omic Predictions of Health Outcomes Validation Study 7879 National Health and Nutrition Examination Survey (NHANES) Genetic Restricted Data
National Health and Nutrition Examination Survey (NHANES) Restricted Data: 1999 to Present
National Health and Nutrition Examination Survey (NHANES) Restricted Data: Prior to 1999
NCHS Survey Data Linked to Centers for Medicare & Medicaid Services (CMS) Medicaid Enrollment and Claims Files
NCHS Survey Data Linked to Centers for Medicare & Medicaid Services (CMS) Medicare Data Files
NCHS Survey Data Linked to National Death Index (NDI) Mortality Files
Project Title ID Requested Data Application Received
Requesting Data for Honors Thesis 56505 Drug-Involved Mortality (DIM) data available through the Research Data Center (RDC)
Restricted mortality data from the National Vital Statistics System
NSFG Data Request 56048 Restricted-Use National Survey of Family Growth (NSFG)
Dylan Osborn NHANES Thesis Fa'26 55984 National Health and Nutrition Examination Survey (NHANES) Restricted Data: 1999 to Present
Understanding the Role of Long-term Economic Distress in the Growing Educational Gaps in U.S. Life Expectancy 8486 National Health Interview Survey
Discharge by Design: Race, Payment Source, and the Political Economy of Hospital Abandonment in Post-DRG America, 1988–2010 8392 National Hospital Discharge Survey (NHDS) Restricted Data, 1965-2010
Factors Affecting Chronic Disease Patterns of People Living with HIV 8379 National Health and Nutrition Examination Survey (NHANES) Restricted Data: 1999 to Present
Reducing Administrative Burdens in Medicaid: Impacts on Early Life Racial, Ethnic, and Citizenship Inequalities 8346 CMS Transformed Medicaid Statistical Information System (TMSIS)
American Community Survey
NCHS - All-County Linked Births/Infant Deaths File with Exact Dates of Birth and Death
State Insulin Copay Caps, Medication Access, and Mental Health Among Adults With Diabetes 8297 National Health Interview Survey
Residential Tree Canopy and Preserved Ratio Impaired Spirometry in U.S. Adults: A Restricted-Data NHANES 2007–2012 Study 8247 National Health and Nutrition Examination Survey (NHANES) Restricted Data: 1999 to Present
Cumulative Lead Exposure and Cardiovascular Disease Mortality 8190 NCHS Survey Data Linked to National Death Index (NDI) Mortality Files
The Effect of Updated Parental Investment Beliefs on Very Low Birthweight Babies 8123 National Health Interview Survey
Contribution of modifiable risk factors to select early-onset cancers in U.S. adults aged 25-49, during 2009-2023 8080 National Health and Nutrition Examination Survey (NHANES) Restricted Data: 1999 to Present
How Parental Risk Behaviors Affect Child Health 7988 National Health Interview Survey
Explaining Low Insurance Acceptance Among Mental Healthcare Providers 7959 National Ambulatory Medical Care Survey, Restricted data, 1973, 1975-1981, 1985, 1989-2016, 2018-2019
Trends in racial disparities in cervical cancer mortality in the 50 most populous U.S. counties 7927 National Health Interview Survey
Causal Relationship Between Gynecologic Infections and Ovarian Reserve Markers in Women: A NHANES-Based Analysis 7915 National Health and Nutrition Examination Survey (NHANES) Restricted Data: 1999 to Present
Association Between Oral Health Status and Anxiety/Depression: A Study Based on the NHANES Database 2019-2020 7906 National Health and Nutrition Examination Survey (NHANES) Restricted Data: 1999 to Present
Applying an Exposome Approach to Investigate Environmental Determinants of Cardiovascular Disease and Health Outcomes 7889 National Health Interview Survey
NCHS Survey Data Linked to National Death Index (NDI) Mortality Files
Geospatial characterization of cancer risk factors among US young adults 7867 National Health and Nutrition Examination Survey (NHANES) Restricted Data: 1999 to Present
Vision Difficulty and Mental Health Status Among U.S. Adults and Children: Analysis of the 2021-2023 National Health and Nutrition Examination Survey 7845 National Health and Nutrition Examination Survey (NHANES) Restricted Data: 1999 to Present
Evaluating the relationship between paid sick leave and influenza vaccination in US healthcare workers. 7621 National Health Interview Survey
Structural Xenophobia, Maternal Health, and Birth Outcomes among Immigrants 7482 National Health Interview Survey
Role of polypharmacy systemic disease in oral microbiome makeup 7421 National Health and Nutrition Examination Survey (NHANES) Restricted Data: 1999 to Present
DNA methylation associated with heart and brain disease together 7086 National Health and Nutrition Examination Survey (NHANES) Genetic Restricted Data
Harvesting the Toll: Productivity loss from poor health in U.S. Agriculture 6995 National Health Interview Survey
Update on Blood-Bassed and DNA Methylation Biological Aging Measures 6945 National Health and Nutrition Examination Survey (NHANES) Genetic Restricted Data
The association of housing assistance with Delay in CKD Progression 6909 NCHS Survey Data Linked to Centers for Medicare & Medicaid Services (CMS) MAX Data
NCHS Survey Data Linked to the Department of Housing and Urban Development (HUD) Housing Assistance Program Files
NCHS Survey Data Linked to Centers for Medicare & Medicaid Services (CMS) Medicaid Enrollment and Claims Files
NCHS Survey Data Linked to Centers for Medicare & Medicaid Services (CMS) 1999-2013 Medicare Data
NCHS Survey Data Linked to Centers for Medicare & Medicaid Services (CMS) Medicare Data Files
NCHS Survey Data Linked to United States Renal Data System (USRDS) End-Stage Renal Disease Files
NCHS Survey Data Linked to National Death Index (NDI) Mortality Files
Applicability of different healthy eating indexes and scores as predictors of cardiometabolic health by race/ethnicity 6740 National Health and Nutrition Examination Survey (NHANES) Restricted Data: 1999 to Present
Veterans' Economic Well-being Study (VEWS) 6732 National Health Interview Survey
NCHS Survey Data Linked to Department of Veterans Affairs Administrative Data Files
State and Municipal Policy Environments and their Association with Immigrant Behavioral Health 6661 National Health Interview Survey
Project Title ID Requested Data Application Received
Variability of Mortality Levels and Trends by State and County in the United States 8119 Restricted mortality data from the National Vital Statistics System
NCHS - All-County Natality File with Exact Date of Birth
Operationalizing Nutrition Insecurity to Advance Understanding of Diet-Related Health Disparities in Older Adults 8088 National Health and Nutrition Examination Survey (NHANES) Restricted Data: 1999 to Present
The Impact of State Pre-K Investments on Child Health and Maternal Mental Health 8078 National Health Interview Survey
MORTALITY TRENDS IN TYPE 2 DIABETES 8057 NCHS Survey Data Linked to National Death Index (NDI) Mortality Files
U.S. Digestive Disease Mortality Disparities 8037 NCHS Survey Data Linked to National Death Index (NDI) Mortality Files
Health and Social Impacts of Changing Eligibility Criteria for US Social Policies 7937 National Health Interview Survey
State-Level Analysis to Inform Health Policy 7922 National Health Interview Survey
Cannabis and Tobacco Policy Effects on Tobacco Product Use 7908 National Health Interview Survey
Prevalence of Steatotic Liver Disease and Fibrosis Among U.S. Individuals Aged ≥12 Years Using Alcohol-Adjusted Classification With Restricted NHANES 2017–2023 Data 7730 National Health and Nutrition Examination Survey (NHANES) Restricted Data: 1999 to Present
The Evolution and Cause-Specific Drivers of U.S. Mortality by Area-Level Income, 1990-2024 7715 Restricted mortality data from the National Vital Statistics System
Evidence on differences in diet between Asian American subgroups 7507 National Health and Nutrition Examination Survey (NHANES) Restricted Data: 1999 to Present
Rural - Urban Differences in Lung Cancer Mortality Risk in the United States 7470 NCHS Survey Data Linked to National Death Index (NDI) Mortality Files
Assessing the short-term impact of environmental exposures on cause-specific mortality 7356 Restricted mortality data from the National Vital Statistics System
Examining Place-Based Social Vulnerability and Protective Factors in Young Adult Mental Health from 2019-2024 7290 National Health Interview Survey
HPV and HPV-related cancer prevention prevalence among people experiencing homelessness in the United States, 2006-2018 7287 NCHS Survey Data Linked to the Department of Housing and Urban Development (HUD) Housing Assistance Program Files
Non-Invasive Tests (NITs) and Liver-Related Mortality 7273 NCHS Survey Data Linked to National Death Index (NDI) Mortality Files
Quality of Cardiovascular Disease Prevention among Asian American Adults 7263 National Health and Nutrition Examination Survey (NHANES) Restricted Data: 1999 to Present
National Health Interview Survey
Direct Care Worker Training Requirements in Assisted Living and Their Impact on Resident Emergency Department and Hospital Utilization 7227 National Post-acute and Long-term Care Study: Residential Care Community Restricted Dataset
Trends in Childhood Blood Lead levels for the NHANES 2017-2018, pre-pandemic 2017-2020, and 2021-2023 cycles. 7214 National Health and Nutrition Examination Survey (NHANES) Restricted Data: 1999 to Present
Chronic wasting disease exposures: Assessing factors associated with history of exposure, disease knowledge, and transmission concerns 7208 NCHS Rapid Survey Systems Restricted Use File
HRSA MCHB Pediatric Mental Health Care Access (PMHCA) Program National Impact Study 7205 National Health Interview Survey
Economic deprivation as a structural determinant of health among women with breast cancer and cardiovascular disease. 7180 National Health Interview Survey
Associations of tooth loss and peptic ulcers with cancer history and mortality using the National Health Interview Survey Data with Linked Mortality Follow-Up 7124 NCHS Survey Data Linked to National Death Index (NDI) Mortality Files
Physical Activity, fitness, and body composition among Asian subgroup children and adults. 7073 National Health and Nutrition Examination Survey (NHANES) Restricted Data: 1999 to Present
The Impact of Consumer-Directed High Deductible Plans on Health Behaviors and Mortality 7011 National Health Interview Survey
Mental Health Outcomes of Rural versus Urban Areas as Income to Poverty Ratios and Educational Attainment Increase 6811 National Health Interview Survey
Healthcare Utilization and Delay among Asian Americans 6785 National Health Interview Survey
Novel Methods to Investigate H. pylori Prevalence in Regions of Persistent Poverty 6737 National Health and Nutrition Examination Survey (NHANES) Restricted Data: 1999 to Present
Geographical variations and influential factors in prevalence of oral health diseases in California and four neighboring states 6659 National Health and Nutrition Examination Survey (NHANES) Restricted Data: 1999 to Present
The Linkage Between Economic Activity and Health Behaviors 6658 National Health Interview Survey
Project Title ID Requested Data Application Received
Depressive Symptoms, Arterial Stiffness, and Mortality in U.S. Adults with Cardiovascular Comorbidities: A Mediation Analysis Using Restricted-Use NHANES Linked Mortality Data 8280
Quantifying Cultures of Discrimination to Address Health Disparities among LGBTQ+ Individuals 7517 National Health Interview Survey
Linking Frailty, Diet Quality, Socioeconomic Disadvantage, autoantibodies and Epigenetic Aging to Dementia and Mortality in U.S. Adults: A Longitudinal Study Using NHANES-Mortality and Medicare Data 7114 NCHS Survey Data Linked to National Death Index (NDI) Mortality Files
NCHS Survey Data Linked to Centers for Medicare & Medicaid Services (CMS) Medicare Data Files
National Health and Nutrition Examination Survey (NHANES) Genetic Restricted Data
National Health and Nutrition Examination Survey (NHANES) Restricted Data: 1999 to Present
Using big data to understand the influence of extreme weather events on child health and development in the U.S. 5650 National Health Interview Survey
National Survey of Children's Health
Current Population Survey (CPS) Food Security Supplement
NCHS - All-County Linked Births/Infant Deaths File with Exact Dates of Birth and Death
Exploring the Causal Relationship Between PM2.5 Exposure and Cardiovascular Disease: A Mendelian Randomization Approach Using NHANES 5524 National Health and Nutrition Examination Survey (NHANES) Genetic Restricted Data
National Health and Nutrition Examination Survey (NHANES) Restricted Data: 1999 to Present
Optimizing Care Pathways 2047 National Hospital Care Survey (NHCS) linked to Centers for Medicare & Medicaid (CMS) Medicaid Data
NCHS Survey Data Linked to Centers for Medicare & Medicaid Services (CMS) Medicare Data Files
Exploring the Association of Oral Microbiome with Systemic Diseases 1321 National Health and Nutrition Examination Survey (NHANES) Restricted Data: 1999 to Present
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