The University of Michigan Library staff prepared an extensive reference tool that can be used to find statistical data. This list is provided on their website.
Weblocation for this resource
Starting with a list such a this one has the distinct advantage of providing a comprehensive starting point that helps researchers find places where statistical information is available. The Health section of this list provides a well organized guide to finding material. The material is organized by topic. Users find a list of websites that have the most important sources of material. http://www.lib.umich.edu/govdocs/stats.html