The Appalachian Drug Overdose interactive tool was designed and developed by NORC’s Walsh Center for Rural Health Analysis, our Health Media Collaboratory, and our Visualization Laboratory in partnership with the Appalachian Regional Commission.
The interactive tool was created in JavaScript using the Leaflet library. Data was processed using SAS and converted from shapefile to GeoJSON using the ogr2ogr web client. County level drug overdose death rates were downloaded from the National Vital Statistics System Multiple Causes of Death File. Employment data come from the U.S. Bureau of Labor Statistics’ Quarterly Census of Employment and Wages. Additional data were derived from the U.S. Census Bureau’s American Community Survey .
The visualizer presents age-adjusted mortality rates for the population aged 15 to 64. The combined population estimates for the time period (either 2011-2015 or 2006-2010) are the denominator for the mortality rates. If a county has fewer than 20 deaths over the five-year time period, the mortality rate is considered “unreliable” and we present the crude mortality rate. For counties with fewer than 10 deaths over the five-year time period, the number of deaths is suppressed, and therefore a mortality rate is not provided. However, when possible, we have calculated the maximum crude mortality rate based on the population and the assumption of less than 10 deaths.
Counties were classified as “urban” or “rural” based on designations from the Appalachian Research Council (ARC), based on a simplification of the USDA’s Economic Research Services (ERS) 2013 Urban Influence Codes (UIC). Urban counties include large metro counties (counties that include large metropolitan centers of one million population or greater) and small metro counties (counties with metropolitan centers of less than one million population). Rural counties include non-metro counties adjacent to large metros, non-metro counties adjacent to small metros, and non-metro counties not adjacent to a metro.