2012 Volume 13 Issue 3 Pages 203-208
Two studies were performed to determine the incidence of cognitive dysfunction induced by traumatic brain injury and related disorders, and neuropsychological factors associated with return to work. A web-survey revealed that the incidence of cognitive dysfunction was 2.3/100,000 population per year, and would increase by either twofold or threefold if it was corrected by the data obtained from official certificates of physical and mental disabilities. Ninety two patients with cognitive dysfunction were admitted to this department for rehabilitation, and were evaluated retrospectively by using the Wechslar Adult Intelligence Scale-III（WAIS）, Wechslar Memory Scale-Revised（WMS）, Rivermead Behavioral Memory Test（RBMT）, Frontal Assessment Battery（FAB）, and Behavioral Assessment of Dysexecutive Syndrome（BADS）. The final outcome was the general employment group for 10, the sheltered employment group for 8 and the non-employment group for 74. The relationship between the three groups in the neuropsychological evaluations other than BADS was “general employment ＞ sheltered employment ＞ non-employment”, but the BADS showed the relationship, “general employment and sheltered employment ＞ non-employment”. The values of Performance IQ and Full IQ of WAIS-R, verbal, visual, general and delayed memory of WMS, and RBMT were significantly greater in the general employment group than those in the non-employment group, and the value of the delayed memory of WMS in the sheltered employment group was also greater than that in the non-employment group.
