The Disability Rating Scale (DRS) was developed as a way to track a traumatic brain injury (TBI) patient from 'Coma to Community'.
However, the point of the scale is to track the patient's progress over time[2] while the GOS is used to simply determine the extent of a brain injury.
[5] M. Rappaport introduced the DRS in 1982 to overcome the poor precision of the Glasgow Outcome Scale.
An impairment rating is based on the Glasgow Outcome Scale, such as "Eye Opening," "Communication Ability," and "Motor Response."
"[4] Eliason and Topp have had success in using the DRS for its predictive capabilities on hospital length of stay and discharge for patients with acute brain dysfunctions.
[7][full citation needed] The DRS's major advantage comes from its ability to track a patient's rehabilitation progress.