THE EDINBURGH EXTENDED GLASGOW OUTCOME SCALE (EEGOS) - RATIONALE AND PILOT-STUDIES

The Glasgow Outcome Scale (GOS) is the most widely used outcome measur e in head injury research. However, it is a global and relatively inse nsitive measure, precluding any description of the types of impairment s that lead to the disability. The Edinburgh Extended Glasgow Outcome Scale (EEGOS) was devised as a new outcome measure that retains the ad vantages of the existing GOS but allows comparison of patterns of reco very in different areas of function; behavioural, cognitive and physic al. This report describes pilot studies of the EEGOS used retrospectiv ely, and in `live' face-to-face interviews. The results show raw perce ntage agreements of 45%, 60% and 70% in the retrospective study, and 8 3%, 78% and 83% in the `live' study. These results demonstrate that th e inter-rater reliability of the EEGOS is comparable to that of the GO S applied in similar situations.