University of Chicago & The Donald W

Apr 01, 2019 · 215 patients who died of a prescription opioid overdose in 2012 or 2013 (cases) and 833 living controls were identified from all veterans enrolled in both VA and Part D who filled at least 1 opioid prescription from either system; exposure was the source of opioid prescriptions within 6 months of the index date, categorized as VA only, Part D only, or VA and Part D (that is, dual use); outcome ... ................
................