Are you new to health statistics concepts? The following tutorials have useful information on approaching this kind of searching.
This course from the National Information Center on Health Services and Health Care Technology (NICHSR) describes the range of available health statistics, identifies their sources and helps you understand how to use information about their structure as you search.
This section of the Public Health Information & Data Tutorial from Partners teaches you how to identify relevant and appropriate data and information sources. Sponsored by Partners in Information Access for the Public Health Workforce.
This is a seminar provided by a staff at the National Center for Health Statistics (NCHS). A great overview of surveys collected by NCHS including the restricted access data at the Research Data Center (RDC).