On behalf of 49 US states and six US territories, Brattle analyzed the costs they incurred as a result of the opioid epidemic. Brattle experts computed the historical and future costs related to the epidemic in healthcare, criminal justice, child welfare, and education, as well as the tax revenues lost because of opioid addiction and abuse. This analysis was used by the states and territories to assert and ultimately settle their claims against the Purdue Pharma estate.