Using secondary datasets for population-level epidemiologic, outcomes and health services research can be an effective, resource-efficient way to conduct high quality research. The following tables provide the name, sources, most precise level of geographical classification, most recent date of presentation, and a brief description of data that can be used in such research. The databases and datasets range from registries to survey data to government databases that can be used to research health behaviors, health care utilization, disease incidence, and other health related issues. The data