In public health, there are totals which can give researchers and policy makers a raw sum of cost or human loss. There are per capita counts, which allow for more meaningful comparisons of an issue's frequency across population groups and geographic boundaries. And thanks to a research scientist named Francis Boscoe, there is another metric, known as "distinctive causes of death." Calculating the difference between state and countrywide averages for the same sources of... (GunPolicy.org)