Because of a lapse in government funding, the information on this website may not be up to date, transactions submitted via the website may not be processed, and the agency may not be able to respond to inquiries until appropriations are enacted. The NIH Clinical Center (the research hospital of NIH) is open. For more details about its operating status, please visit  cc.nih.gov. Updates regarding government operating status and resumption of normal operations can be found at OPM.gov.
Model-based small area estimates are created by combining information from NHIS, BRFSS and auxiliary variables obtained from relevant sources (Census, American Community Survey, Administrative information) through novel statistical models.
Notice: The definitions of the screening outcomes for the 2011-2023 periods are updated to match the corresponding updated U.S. Preventive Services Task Force (USPSTF) recommendations. Ever smoking prevalence was replaced by former smoking from 2011 and forward.
The American Statistical Association presented the 2007 Statistical Partnerships among Academe, Industry and Government (SPAIG) Award to the collaborating organizations responsible for developing the methodology for these estimates.
Read more about this and other awards.