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Updated: Aug 2, 2026

Using Brain Activation (nir-HEG/Q-EEG) and Execution Measures (CPTs) in a ADHD Assessment Protocol
Published on: April 1, 2018
[Attention-deficit hyperactivity disorder comorbidity in a school sample of children]
Marianne de Aguiar Possa1, Lucas Spanemberg, Ana Guardiola
1Serviço de Psiquiatria, Hospital das Clínicas de Porto Alegre. mariannepossa02@yahoo.com.br
Objective:
To evaluate the frequency of conduct disorder (CD), oppositional defiant disorder (ODD) and obsessive-compulsive disorder (OCD) in children with attention-deficit hyperactivity disorder (ADHD).
Method:
This study was performed with children between 7 and 11 years old who fit the DSM-IV diagnostic criteria (n=35) to ADHD, normal neurologic examination and abnormal evolutionary neurological examination (ENE) by Lefèvre. Parents answered a questionnaire with DSM-IV criteria to ADHD and comorbidities.
Result:
ADHD combined subtype was the most prevalent (51.4%). Fourteen (40%) had CD, including two with both CD and OCD. Five (14.2%) had only ODD and one (2.8%) only OCD. Eleven of fourteen children (78.5%) with CD had also ADHD combined subtype, with significant statistical difference (p<0.05). Eleven of fifteen children (73.3%) without comorbidity had inattentive or hyperactive subtype (p<0.05).
Conclusion:
The frequency of association between CD and ADHD was high, much more in combined subtype.
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