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KMID : 0367320080190020112
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Journal of the Korean Academy of Child and Adolescent Psychiatry
2008 Volume.19 No. 2 p.112 ~ p.119
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Usefulness of Clinical T-Score of Continuous Performance Test for Differential Diagnosis : among Attention-Deficit Hyperactivity Disorder, Depressive, Anxiety Disorder, and Tic Disorder
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Yoon Soo-Youn
Kim Bung-Nyun
Shin Min-Sup
Cho Soo-Churl
Koo Hoon-Jung
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Abstract
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Objectives : This study was conducted to examine whether there are qualitative differences in attention problem among children with various psychiatric disorders, including attention-deficit hyperactivity disorder (ADHD), depressive disorder, anxiety disorder, and tic disorder using clinical ADHD diagnostic system (ADS) T-scores.
Methods : The subjects were 794 outpatient children aged from 5 to 15 years, including 540 children with ADHD, 95 children with depressive disorder, 86 children with anxiety disorder, and 73 children with tic disorder. Clinical T-scores on the ADS were calculated using the mean and standard deviations of four ADS variables for the ADHD group.
Results : All four groups had T-scores on the ADS in the abnormal range. However, when comparing the clinical T-scores, the children with depressive and anxiety disorders performed better than the children with ADHD. We also found that although the four groups seemed to be similar in terms of clinical T-scores for omission and commission errors, there were significant differences in clinical T-scores for reaction time and the standard deviation of response time (RT) between the ADHD and other groups.
Conclusions : We concluded that inattention and impulsivity might not be specific only to ADHD and that the clinical T-scores of RT and standard deviation of RT on the ADS could be used to discriminate between ADHD and other clinical groups.
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KEYWORD
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Clinical T-Score, Attention, Continuous Performance Test
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