Adult ADHD: Questioning Diagnosis and Treatment in a Patient with Multiple Psychiatric Comorbidities.
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ABSTRACT:
SUBMITTER: Chu RK
PROVIDER: S-EPMC5485267 | biostudies-other | 2017
REPOSITORIES: biostudies-other
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Project description:Objective: While attention-deficit/hyperactivity disorder (ADHD) is associated with a high prevalence of comorbid psychiatric disorders in every age group, the etiology and epidemiology of comorbid disorders are less clear in adult patients with ADHD. In this surveillance study, investigators sought to assess the prevalence of comorbid psychiatric disorders, evaluate relationships between comorbid psychiatric disorders and demographic characteristics, and explore the patterns of these comorbid disorders and their relationships with ADHD subtypes. Methods: Data obtained from postmarketing surveillance of methylphenidate extended-release tablets for adult ADHD were used to evaluate the prevalence of psychiatric comorbidities. Age, sex, age at diagnosis, number of comorbidities, and severity of ADHD symptoms were used as external variables for exploratory analyses. Nonmetric multidimensional scaling (NMDS) was performed to explore correlations among comorbidities and ADHD subtypes and extract major dimensions underlying variations in the pattern of comorbid disorders. Results: Data were collected from 575 patients with adult ADHD, including 301 (52.35%) with at least one concurrent psychiatric disorder. Analysis by NMDS demonstrated that different patterns of psychiatric comorbidities were related to the subtypes of ADHD. Conclusions: Psychiatric comorbidities have a high prevalence in patients with adult ADHD. Understanding these patterns could provide useful information in the diagnosis of adult ADHD and future investigations of its etiology.
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Project description:Background/aimPatients with attention-deficit hyperactivity disorder (ADHD) manifest symptoms of hyperactivity, impulsivity, and/or inattention. ADHD medications available in Japan are limited compared with those in Western countries. Prescribing status has not been sufficiently evaluated in clinical settings in Japan. This study investigated the current use of ADHD medications and characteristics of patients who received multiple ADHD medications in a clinical setting in Japan.MethodsStudy participants were those who visited the Department of Child and Adolescent Psychiatry, Kohnodai Hospital between April 2015 and March 2020. We investigated patients who received osmotic-controlled release oral delivery system methylphenidate, atomoxetine, or guanfacine. A retrospective case-control design was used to evaluate the characteristics of patients who received multiple ADHD medications. Patients who were given three ADHD medications were defined as the case group. Randomly sampled sex- and age-matched patients diagnosed with ADHD were defined as the control group. We compared data for child-to-parent violence, antisocial behavior, suicide attempt or self-harm, abuse history, refusal to attend school, and two psychological rating scales (the ADHD-Rating Scale and Tokyo Autistic Behavior Scale).ResultsAmong the 878 patients who were prescribed any ADHD medications, 43 (4.9%) received three ADHD medications. Logistic regression revealed that children with severe ADHD symptoms, autistic characteristics, or tendency of child-to-parent violence were more likely to have been prescribed three medications during their treatment.ConclusionsOur findings suggest the approach to prevent the use of multiple ADHD medications. A prospective study to investigate the causality between prescribing status and clinical characteristics is warranted.
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