Development of a Risk Prediction Screening Tool for Opioid-Prescription Injury (STOP Injury) in Older Adults Initiated on Opioids From the Emergency Department (STOP Injury)

The experience from this project will lay the groundwork on prospective validation of STOP Injury in a large appropriately powered study. Aim 1 will provide data that will help narrow inclusion of candidate variables in the STOP Injury tool to include those that are most feasible to collect and most predictive. Aim 2 will help inform the possible inclusion of genetic factors into a predictive model. Finally, Aim 3 will help identify quality of life outcomes that should be considered when assessing opioid medication adverse events.

Aim 1. Evaluate the association between prescription opioid adverse events in older adults and candidate risk prediction variables proposed for STOP Injury prediction score The study team will conduct a pilot prospective observational study of 200 patients 50 years or older who are initiated on opioids from the emergency department (ED). The investigators will analyze the association between candidate risk factors and opioid adverse events (falls and OD).

Aim 2. Evaluate the association between prescription opioid adverse events and genetic factors.

In the cohort from Aim 1, the study team will test subjects for 12 genetic single nucleotide polymorphisms related to opioid metabolism, transport, and effect.

Aim 3. Measure the impact of opioid medications on quality of life measures in older adults The investigators will implement a series of quality of life measures on a subset of patients as a pilot study to determine which measures capture the impact prescription opioids have on older adults' quality of life