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 TUS/CPS and auxiliary variables obtained from relevant sources (Census and American Community Survey) through statistical models.
* Modeled estimates for current and ever smoking prevalence are also derived from this project. They are not released in this website to avoid overlap with estimates derived from combining NHIS/BRFSS under the topic of Cancer Risk Factors and Screening Behaviors. For those who are specially interested in the estimates of smoking prevalence derived from TUS/CPS, please contact us.