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National Survey of Emergency Physicians to Define Functional Decline in Elderly Patients with Minor Trauma.

BACKGROUND
There are a number of screening tools to predict return to the emergency department (ED) in elderly trauma patients, but none exist to specifically screen for functional decline after a minor injury. The objective of this study was to identify outcome measures for a possible future clinical decision rule to be used in the ED to identify previously independent patients at high risk of functional decline at six months post minor injury.


METHODS
After a rigorous development process, a survey instrument was administered to a random sample of 178 emergency physicians using the Dillman's Tailored Design Method.


RESULTS
Of 156 eligible surveys, we received 81 completed surveys (response rate 51.9%). Considering all 14 activities of daily living (ADL) items, 90% of physicians deemed a minimal clinically important difference (MCID) in function to be at least three points on the 28-point Older Americans Resources and Services (OARS) ADL Scale as clinically significant. A tool with a sensitivity of 93% to detect patients at risk of functional decline at six months post injury would meet or exceed the sensitivity deemed to be required by 90% of physicians. The majority of emergency physicians do not assess elderly injured patients for the majority of the tasks.


CONCLUSIONS
A drop of three points on the 28-point OARS ADL Scale would be deemed clinically important by the vast majority of emergency physicians. Further, a sensitivity of 93% for a clinical decision tool would satisfy the MCID requirements of the vast majority of emergency physicians. There appears to be a gap between physician knowledge and actual practice. We intend to use these findings in the development of a clinical decision rule to identify high-risk elderly trauma patients.