The purpose of this study is, therefore, to characterise opioid and benzodiazepine prescribing after road traffic injury. Specifically, the aims are to describe prescribing after road traffic injury, and to determine how prescribing before and after injury differs by age, gender, injury type, and history of mental health service use. Injury compensation claims records linked with health service and pharmaceutical records preinjury and postinjury are used in this analysis.


Motor vehicle crash victims with physical injury are likely to receive prescription opioids and benzodiazepines. Potential mental trauma and lack of primary treating physician contribute to the risk of adverse opioid outcomes for this group. The
purpose of this study is to characterise opioid and benzodiazepine prescribing after road traffic injury.


Individuals who claimed Transport Accident Commission compensation for a non catastrophic injury that occurred between 2010 and 2012 in Victoria, Australia and who provided consent for pharmaceutical benefits scheme (PBS) linkage were included (n5734). PBS records dating between 12 months preinjury and 18 months post injury were provided by the Department of Human


In the year before injury, 10.5% of participants received prescription opioids; after injury, 45.1% of hospitalized and 21.1% of non hospitalized participants received opioids. Benzodiazepines were used by 4.8% preinjury, and 7.0% and 7.4%
postinjury (with and without hospitalization, respectively). Postinjury, 39% of opioid use and 73% of benzodiazepine use was potentially unrelated to the injury.


Prescription opioid and benzodiazepine before road traffic injury was substantial: the significance of postinjury prescription drug use cannot be established without taking preinjury use into account. It may be beneficial for pain medication to be managed by a pain treatment coordinator, in this injured population with high rates