Objective
To examine the correlation between Berg balance scale (BBS) which is tool for assessing the clinical balance function and sensory organization test (SOT) of computerized dynamic posturography (CDP) in brain injured patients.

Method
Thirty patients with brain injury were assessed on the BBS and SOT of CDP. BBS consists of 14 items and each item is graded on a five point ordinal scale (0∼4), yielding a total of 56 points. According to its characteristics, each item was divided 3 groups, which were sitting, standing and position change. Six equilibrium scores (EQ) were determined by SOT of CDP (EquiTest System^Ⱂ, Version 5.08) under 6 conditions, and somatosensory, visual, vestibular ratios were analyzed by 6 EQ scores.

Results
EQ 5 was correlated with reaching forward item (r=0.513), turning 360 degrees item (r=0.537), stool stepping item (r=0.529) of BBS (p＜0.01). EQ 6 was correlated with turning 360 degrees item (r=0.498) of BBS (p＜0.01). Sum of standing item group scores was correlated with EQ 5 (r=0.478), EQ 6 (r=0.464), and sum of position change item scores was correlated with EQ 5 (r=0.622), EQ 6 (r=0.514)(p＜0.01). Vestibular ratio was correlated with BBS total score (r=0.552, p＜0.01).

Conclusion
We concluded that vestibular ratio of SOT was correlated with BBS, especially position change item group. Therefore BBS is a good tool for evaluating vestibular function in brain injured patients.