The heterogeneity of social outcome following head injury.

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Abstract
This study compares nine different measures of social outcome applied to 56 patients seen 0 to 4 years after head injury. Social outcome was found to be heterogeneous: correlations between the measures and a principal components analysis both indicated that time off work (as a percentage of time since injury) was independent of most other measures of social performance. In the group studied, the best measures of non-work social performance were the Katz Adjustment Scales form 2 (socially expected activity) and Bond's Social Scale, which both showed good agreement between subject and informant ratings. If a single outcome measure is desired (to include work and non-work social performance), the most suitable measure was found to be the Glasgow Outcome Scale, original and extended versions.