Citation

Hult N, Kadesjö J, Kadesjö B, Gillberg C, Billstedt E. J. Atten. Disord. 2015; ePub(ePub): ePub.

Affiliation

University of Gothenburg, Sweden.

Copyright

(Copyright © 2015, SAGE Publishing)

DOI

10.1177/1087054715595697

PMID

26224575

Abstract

OBJECTIVE: We assess the diagnostic accuracy of the QbTest, which measures the cardinal symptoms of ADHD.

METHOD: The study group comprised 182 children (mean age about 10 years), of whom 124 had ADHD and 58 had other clinical diagnosis of which 81% had ASD.

RESULTS: Only QbTest parameters for inattention and hyperactivity differentiated between ADHD and other clinical diagnoses at the p ≤.01 level, not for measures of impulsivity. Sensitivity ranged from 47% to 67% and specificity from 72% to 84%. Positive predictive value ranged from 41% to 86%, and negative predictive value from 43% to 86%. Area under the curve varied from.70 to.80.

CONCLUSION: The ability of the individual QbTest parameters to identify ADHD was moderate. The test's ability to discriminate between ADHD subtypes was unsatisfactory.

Language: en