Hello,
We recently upgraded our Academic Search Premier database to Academic Search Complete which added a substantial number of journals to our holdings. It looks like it might be useful to you. It is available on the library's top database list at http://library.unomaha.edu/research/topten.php
In searching it, I noticed that it has a subject term for health disparities. Another one that might be useful to you is health services accessibility. When I combined these with the three variables you mentioned, there were several articles. For example, here's one of the searches I did -
1st line - health disparities OR health services accessibility
2nd line - gender differences OR sex differences
The OR in each line gives the database a choice between finding either subject in relation to the terms on the next line. In this case, it is doing four searches in one
For the concept of income, the phrase socioeconomic factors is often used so you might try that. And race differences and ethnic differences are also used by the database.
Feel free to email me directly, if you need more specific help. My email is mcast@unomaha.edu
Melissa
