Sir,
Venkatesh et al. have reported a high rate of comorbidity among Attention Deficit Hyperactivity Disorder (ADHD) children.[1] Here, we would like to add some points.
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The most common ADHD comorbidity was Learning Disorder (LD) in this report. LD is defined by DSM IV as reading, writing, or mathematical disorder. About 20% of the children in this study were less than 3 years old. Evaluating LD in children is difficult before they reach 3 years of age.
Psychiatrists recommend waiting for assessment of LD until the children become 6 years of age. This may have influenced the results of this study. Also, assessment of Intelligence Quotient (IQ) is difficult in 3-year-old children.
Tic and Obsessive Compulsive Disorder (OCD) are two common ADHD comorbidities.[2] These items are not mentioned in this report. Although OCD may be classified as anxiety disorder in this study, its report as a distinct comorbidity may be helpful.
REFERENCES
- 1.Venkatesh C, Ravikumar T, Andal A, Virudhagirinathan BS. Attention-deficit/Hyperactivity Disorder in Children: Clinical Profile and Co-morbidity. Indian J Psychol Med. 2012;34:34–8. doi: 10.4103/0253-7176.96155. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 2.Amiri S, Fakhari A, Golmirzaei J, Mohammadpoorasl A, Abdi S. Tourette's syndrome, chronic tics, and comorbid attention deficit/hyperactivity disorder in elementary students. Arch Iran Med. 2012;15:76–8. [PubMed] [Google Scholar]