Public health policy decisions and needs assessments are predicated on interpretations and conclusions drawn from combining the results from many individuals or a population. The use of current estimates of population characteristics is necessary to make estimates of disease, injury, disability, behaviors of interest to public health, and their distributions. Often, these estimates require population denominators from the census.

This module outlines the history of the census in the United States and its use as a source of data for use in publiuc health planning or analysis. Much analysis and reporting of public health data relies on knowledge of the use of census data.  This module provides background information required to use census data. 

This module will address:

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