To Roger: The Cancer Knowledge information comes from the HINTS survey. HINTS has a stand-alone website, http://hints.cancer.gov/ , and information about the estimates and methodology can be found there. The HINTS data and maps were integrated into State Cancer profiles to provide data about the American public’s access and use of cancer-related information and aid cancer control planners in directing local cancer communication efforts or other methods of intervention.
To David: Yes, the screening and risk factors data are self-reported mostly from the latest Behavioral Risk Factors Surveillance Survey, the Tobacco Use Supplement of the Current Population Survey and the National Health Interview Survey. Self-reported data through surveys are designed to provide cross-sectional national estimates. While advances in electronic heath records may provide some information quicker, specific topics and questions
To Pem: The State Cancer Profiles website has only state level data for breast cancer prevalence. Statistical modeling is needed to create these prevalence data. State level data will be available soon for all cancer sites. However, there are currently no plans for county level prevalence data.
The website has county level data for screening variables, mammography, pap smear, current or ever smoker. Efforts are underway to provide county level screening data for the other screening variables. The date is not yet known.