The Center for Health Statistics has finished analyzing this dataset and results were reported in its recent book of tables, as well as in several special reports, all available by mail or from their web site. The survey instrument they used is also downloadable from their web site as are several interim reports, and the study is entitled Emergency Room study, or something like that. Best of all, in its book of tables, there is an appendix listing all reporting agencies they collect data from, along with contact info. You can also contact the Center for Health Statistics directly for guidance, information and perhaps even some relevant instruments and datasets. I would give you the URL of the CDC Center for Health Statistics, but the bookmark file is on my other computer.
Sociology changes the world.