Yafteh

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Background: Bender Gestalt Test is one of the most famous neuropsychological tests, simple and easy to perform, and is used to evaluate brain injuries. This study aimed at determining the rate of sensitivity, characteristic and cut-off point of this test in patients with traumatic brain injury (TBI). Methods and Materials: Overall, 120 TBI patients with mean age of 31.25± 13.60 years old in a descriptive-analytical research design entered the study using nonprobability and consecutive sampling method. All patients underwent Bender Visual-Motor Gestalt Test after neurological evaluations by CT scan. Roc curve test was utilized to analyze the data. Results: In this study, cut-off point was calculated as 6.5%, sensitivity as 55.8%, characteristic as 81.2%, and the area under the Roc curve as 0.69. Moreover, positive predictive value, negative predictive value and efficiency were 95.08%, 22.03%, and 59.17%, respectively. Conclusion: Results of this study revealed that Bender Gestalt Test is relatively weak in diagnosis of mild TBI. Hence, its characteristic is high and it was successful in diagnosing healthy individuals.

Keywords: Sensitivity, Specificity, Cut off point, Visual- Motor Bender Gestalt Test, traumatic brain injury.

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