About the Data For the first release April 6, 2018, OHA analyzed annual data from 2008-2016 and quarterly from second quarter 2016 through third quarter 2017 and sorted this by gender, race and age range of the patient along with marketplace totals and county level per-capita rates. In May 2018, OHA will release an update to the annual data covering 2008 to year-end 2017 data with additional detail on the demographics within the regional marketplaces. Quarterly updates will be posted thereafter. OHA data are derived from the nearly 34 million annual coded hospital encounters in Ohio. The release of per-capita rates by county as well as by market area are intended to assist health policy makers, funders and local collaboratives in their work. The data do not reflect overdoses that did not present for care at a hospital or overdoses that occurred among Ohio residents who were cared for at hospitals outside the state. This data set is encounter-level and does not reflect individual patients. OHA worked with third-party experts to assure data in the release protects patient privacy. View OHA's White Paper - Click Here. Download Data - Click Here. OHA Data Dashboard Navigation: Use the buttons at the bottom of the report to navigate between pages. Interact with Filters: Use the 'Select Data Filter(s)' section to filter the report.