Abstract: Objective To study the correlation of daily living activities with location and severity of traumatic brain injury （TBI） and to provide a theoretical basis for improving the accuracy of expert opinion. Methods Five hundred and one cases of patients with TBI were selected. Detailed records included following： pre-injury situation, location and severity of injury, treatment and education. Daily living activities scale （Barthel index） was applied to test the subjects’ daily living activities. The relevance among location and severity of TBI and Barthel index was statistically analyzed. Results In mild TBI group, there was no significant difference in Barthel index among each location （P>0.05）. In moderate TBI group, there were significant differences in Barthel index between subarachnoid hemorrhage and cerebral lobe injury, also between parietal, occipital lobes injury and frontal lobe injury, parietal, occipital lobes injury and temporal lobe （P<0.05）, respectively, whereas no significant difference in Barthel index between frontal lobe injury and temporal lobe injury （P＞0.05）. In severe TBI, there were significant differences in Barthel index between every two different locations （P<0.05）. Conclusion There is some correlation between the location of TBI and Barthel index, which provides an important reference value for analyzing and determining daily living activities after TBI.  

Key words: forensic psychiatry, traumatic brain injury, accidents, traffic, Barthel scale