What are the CTS and Health Tracking Household Surveys?
The CTS Household Survey is a nationally representative telephone survey of the civilian noninstitutionalized population in the contiguous U.S. (To ensure proper representation, the survey also includes interviews with households that have no telephones.) The survey has been conducted five times: 1996-97, 1998-99, 2000-01, 2003, and 2007. For the first three surveys, the majority of the sample was clustered in 60 communities (“sites”), with a smaller supplemental sample drawn from the entire contiguous U.S. For the 2003 survey, the entire sample was clustered in 60 communities. In 2007 the survey did not include the 60 community clusters, it was only a national sample. Because the latest sample is no longer clustered in communities, the survey has been renamed the HSC Health Tracking Household Survey. The sample for each of the first four years includes 47,000 – 60,000 people; 2007 includes about 18,000 people. For more detailed information on the Household Survey, visit the HSC web si
