The interviews arre conducted primarily in the evenings and on weekends, during the two weeks of every month specified by the CDC for all states. Monthly data files are sent to the Centers for Disease Control and Prevention. Edit reports are produced monthly and corrections made. Corrected data files and edit reports are sent to the CDC monthly. At the end of each survey year, data are compiled and weighted by CDC, and cross tabulations and prevalence reports are prepared.
Unweighted data are the actual responses of each survey respondent.
The data are weighted or adjusted to compensate for the overrepresentation or under-representation of persons in various subgroups. The data are further weighted to adjust the distribution of the sample data so that it reflects the total population of the sampled area. Health care coverage results for Alaska are further analyzed by the Alaska Division of Public Health, Bureau of Vital Statistics. This analysis adjusts for survey respondents who report they have no health care coverage and then in a follow up question report to be covered by a health care plan. Telephone interviews are faster and less expensive than face to face interviews.