The Centers for Disease Control (CDC) has TONS of health disparities statistics, tables, and charts.
Two of the CDC's pages that may be especially helpful are:
Statista is a really cool statistics resource through the Libraries - the best part: it's really easy to use! Statista has charts and graphs that you can download (as a JPG or PowerPoint file) and use in your presentations.
It doesn't have a ton of health sciences/nursing content, but does have some statistics on many major diseases/conditions.
The MSU Libraries has a Health Data and Statistics Research Guide that also has a ton of links - most from free government sources.
There is a listing for Minorities & Women under the Populations and Community tab. Some of the links in the Minorities & Women section link to pages that have health disparities statistics (somewhere - you may have to search/click around a bit).