Are psychiatric comorbidities and associated cognitive functions related to treatment response to methylphenidate in boys with attention-deficit/hyperactivity disorder?

Mandy H Chan,1 Patrick WL Leung,2 Ting-pong Ho,3 Se-fong Hung,4 Chi-chiu Lee,5 Chun-pan Tang,5 Ka-chai Cheung,2 Fung-yee Ching,2 Fefe HK Chan,6 Lu-hua Chen,2 Merce Garcia-Barcelo,7 Pak-chung Sham3 1Department of Clinical Psychology, Kowloon Hospital, Hospital Authority, 2Department of Psychology, T...

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Autores principales: Chan MH, Leung PW, Ho TP, Hung SF, Lee CC, Tang CP, Cheung KC, Ching FY, Chan FH, Chen LH, Garcia-Barcelo M, Sham PC
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Publicado: Dove Medical Press 2017
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spelling oai:doaj.org-article:2922c1da2bff49bfb3fde3cafe1bbe4e2021-12-02T06:51:33ZAre psychiatric comorbidities and associated cognitive functions related to treatment response to methylphenidate in boys with attention-deficit/hyperactivity disorder?1178-2021https://doaj.org/article/2922c1da2bff49bfb3fde3cafe1bbe4e2017-04-01T00:00:00Zhttps://www.dovepress.com/are-psychiatric-comorbidities-and-associated-cognitive-functions-relat-peer-reviewed-article-NDThttps://doaj.org/toc/1178-2021Mandy H Chan,1 Patrick WL Leung,2 Ting-pong Ho,3 Se-fong Hung,4 Chi-chiu Lee,5 Chun-pan Tang,5 Ka-chai Cheung,2 Fung-yee Ching,2 Fefe HK Chan,6 Lu-hua Chen,2 Merce Garcia-Barcelo,7 Pak-chung Sham3 1Department of Clinical Psychology, Kowloon Hospital, Hospital Authority, 2Department of Psychology, The Chinese University of Hong Kong, 3Department of Psychiatry, University of Hong Kong, 4Department of Psychiatry, The Chinese University of Hong Kong, 5Department of Psychiatry, Kwai Chung Hospital, Hospital Authority, 6Department of Clinical Psychology, Alice Ho Mui Ling Nethersole Hospital, Hospital Authority, 7Department of Surgery, University of Hong Kong, Hong Kong, People’s Republic of China Background: Methylphenidate (MPH) has been found to be an effective medication for attention-deficit/hyperactivity disorder (ADHD). However, there are neither consistent nor sufficient findings on whether psychiatric comorbidities and associated cognitive functions of ADHD are related to treatment response to MPH in ADHD children.Objectives: This study investigated whether psychiatric comorbidities, IQ, and neurocognitive deficits are related to treatment response to MPH in ADHD children. In some ways, it is preferable to have a drug that the effectiveness of which to a disorder is not affected by its associated cognitive functions and psychiatric comorbidities. On the other hand, it is likely that the baseline symptom severity of ADHD is associated with the effectiveness of MPH treatment on the symptoms post treatment.Methods: A total of 149 Chinese boys (aged 6–12 years) with ADHD, combined type, and normal IQ participated in this study. Assessment of ADHD symptom severity was conducted pre and post MPH treatment, while assessment of psychiatric comorbidities, IQ, and neurocognitive deficits was performed in a non-medicated condition. Treatment response was defined as the ADHD symptom severity post MPH treatment.Results: Results indicated that MPH treatment was effective, significantly improving the ADHD condition. Yet, comorbid disorders, IQ, and neurocognitive deficits were not related to MPH treatment response on ADHD symptoms. These findings indicated that the effectiveness of MPH was not affected by psychiatric comorbidities and associated cognitive functions of ADHD. Instead, as expected, it was the baseline symptom severity that was mainly related to the treatment response, ie, the milder the baseline condition, the better the treatment response.Conclusion: The current findings positively endorse the widespread clinical use of MPH for treating ADHD. It improves the behavioral symptoms of ADHD regardless of varying psychiatric comorbidities, IQ, and neurocognitive deficits. Keywords: ADHD, psychiatric comorbidities, cognitive functions, treatment response, methylphenidateChan MHLeung PWHo TPHung SFLee CCTang CPCheung KCChing FYChan FHChen LHGarcia-Barcelo MSham PCDove Medical PressarticleADHDpsychiatric comorbiditiescognitive functionstreatment responsemethylphenidate (MPH)Neurosciences. Biological psychiatry. NeuropsychiatryRC321-571Neurology. Diseases of the nervous systemRC346-429ENNeuropsychiatric Disease and Treatment, Vol Volume 13, Pp 1071-1080 (2017)
institution DOAJ
collection DOAJ
language EN
topic ADHD
psychiatric comorbidities
cognitive functions
treatment response
methylphenidate (MPH)
Neurosciences. Biological psychiatry. Neuropsychiatry
RC321-571
Neurology. Diseases of the nervous system
RC346-429
spellingShingle ADHD
psychiatric comorbidities
cognitive functions
treatment response
methylphenidate (MPH)
Neurosciences. Biological psychiatry. Neuropsychiatry
RC321-571
Neurology. Diseases of the nervous system
RC346-429
Chan MH
Leung PW
Ho TP
Hung SF
Lee CC
Tang CP
Cheung KC
Ching FY
Chan FH
Chen LH
Garcia-Barcelo M
Sham PC
Are psychiatric comorbidities and associated cognitive functions related to treatment response to methylphenidate in boys with attention-deficit/hyperactivity disorder?
description Mandy H Chan,1 Patrick WL Leung,2 Ting-pong Ho,3 Se-fong Hung,4 Chi-chiu Lee,5 Chun-pan Tang,5 Ka-chai Cheung,2 Fung-yee Ching,2 Fefe HK Chan,6 Lu-hua Chen,2 Merce Garcia-Barcelo,7 Pak-chung Sham3 1Department of Clinical Psychology, Kowloon Hospital, Hospital Authority, 2Department of Psychology, The Chinese University of Hong Kong, 3Department of Psychiatry, University of Hong Kong, 4Department of Psychiatry, The Chinese University of Hong Kong, 5Department of Psychiatry, Kwai Chung Hospital, Hospital Authority, 6Department of Clinical Psychology, Alice Ho Mui Ling Nethersole Hospital, Hospital Authority, 7Department of Surgery, University of Hong Kong, Hong Kong, People’s Republic of China Background: Methylphenidate (MPH) has been found to be an effective medication for attention-deficit/hyperactivity disorder (ADHD). However, there are neither consistent nor sufficient findings on whether psychiatric comorbidities and associated cognitive functions of ADHD are related to treatment response to MPH in ADHD children.Objectives: This study investigated whether psychiatric comorbidities, IQ, and neurocognitive deficits are related to treatment response to MPH in ADHD children. In some ways, it is preferable to have a drug that the effectiveness of which to a disorder is not affected by its associated cognitive functions and psychiatric comorbidities. On the other hand, it is likely that the baseline symptom severity of ADHD is associated with the effectiveness of MPH treatment on the symptoms post treatment.Methods: A total of 149 Chinese boys (aged 6–12 years) with ADHD, combined type, and normal IQ participated in this study. Assessment of ADHD symptom severity was conducted pre and post MPH treatment, while assessment of psychiatric comorbidities, IQ, and neurocognitive deficits was performed in a non-medicated condition. Treatment response was defined as the ADHD symptom severity post MPH treatment.Results: Results indicated that MPH treatment was effective, significantly improving the ADHD condition. Yet, comorbid disorders, IQ, and neurocognitive deficits were not related to MPH treatment response on ADHD symptoms. These findings indicated that the effectiveness of MPH was not affected by psychiatric comorbidities and associated cognitive functions of ADHD. Instead, as expected, it was the baseline symptom severity that was mainly related to the treatment response, ie, the milder the baseline condition, the better the treatment response.Conclusion: The current findings positively endorse the widespread clinical use of MPH for treating ADHD. It improves the behavioral symptoms of ADHD regardless of varying psychiatric comorbidities, IQ, and neurocognitive deficits. Keywords: ADHD, psychiatric comorbidities, cognitive functions, treatment response, methylphenidate
format article
author Chan MH
Leung PW
Ho TP
Hung SF
Lee CC
Tang CP
Cheung KC
Ching FY
Chan FH
Chen LH
Garcia-Barcelo M
Sham PC
author_facet Chan MH
Leung PW
Ho TP
Hung SF
Lee CC
Tang CP
Cheung KC
Ching FY
Chan FH
Chen LH
Garcia-Barcelo M
Sham PC
author_sort Chan MH
title Are psychiatric comorbidities and associated cognitive functions related to treatment response to methylphenidate in boys with attention-deficit/hyperactivity disorder?
title_short Are psychiatric comorbidities and associated cognitive functions related to treatment response to methylphenidate in boys with attention-deficit/hyperactivity disorder?
title_full Are psychiatric comorbidities and associated cognitive functions related to treatment response to methylphenidate in boys with attention-deficit/hyperactivity disorder?
title_fullStr Are psychiatric comorbidities and associated cognitive functions related to treatment response to methylphenidate in boys with attention-deficit/hyperactivity disorder?
title_full_unstemmed Are psychiatric comorbidities and associated cognitive functions related to treatment response to methylphenidate in boys with attention-deficit/hyperactivity disorder?
title_sort are psychiatric comorbidities and associated cognitive functions related to treatment response to methylphenidate in boys with attention-deficit/hyperactivity disorder?
publisher Dove Medical Press
publishDate 2017
url https://doaj.org/article/2922c1da2bff49bfb3fde3cafe1bbe4e
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