Genetic effects on the variation and covariation of attention deficit-hyperactivity disorder (ADHD) and oppositional-defiant disorder/conduct disorder (ODD/CD) symptomatologies across informant and occasion of measurement

2002 ◽  
Vol 32 (1) ◽  
pp. 39-53 ◽  
Author(s):  
T. S. NADDER ◽  
M. RUTTER ◽  
J. L. SILBERG ◽  
H. H. MAES ◽  
L. J. EAVES

Background. Previous studies have shown that the presence of conduct disorder may contribute to the persistence of attention deficit-hyperactivity disorder (ADHD) symptomatology into adolescence; however, the aetiological relationship between the two phenotypes remains undetermined. Furthermore, studies utilizing multiple informants have indicated that teacher ratings of these phenotypes are more valid than maternal reports.Methods. The genetic structure underlying the persistence of ADHD and oppositional-defiant disorder/conduct disorder (ODD/CD) symptomatologies as rated by mothers and teachers at two occasions of measurement was investigated on a sample of 494 male and 603 female same sex adolescent twin pairs participating in the Virginia Twin Study of Adolescent Behavioral Development (VTSABD).Results. Using structural modelling techniques, one common genetic factor was shown to govern the covariation between the phenotypes across informants and occasion of measurement with additional genetic factors specific to ODD/CD symptomatology and persistence of symptomatology at reassessment. Genetic structures underlying the phenotypes were, to some extent, informant dependent.Conclusions. The findings indicate that it is unlikely that the co-morbidity between ADHD and ODD/CD is due to environmental influences that are independent of ADHD. Rather it is likely to be due to a shared genetic liability either operating directly, or indirectly through gene–environment correlations or interactions. The covariation between phenotypes across informants and time is governed by a common set of genes, but it seems that ODD/CD is also influenced by additional genetic factors. Developmentally, different forms of genetic liability control ADHD in males and inattention in females.

2017 ◽  
Author(s):  
Paul Croarkin ◽  
Reem Shafi

Oppositional defiant disorder (ODD) is a psychiatric disorder classified in the DSM-5 among disruptive, impulse control, and conduct disorder. The core features of ODD include a pervasive and impairing pattern of anger, irritability, inflexibility, defiance, malevolence, and aggression. Symptoms of ODD typically present during preschool. ODD can be a harbinger of conduct disorder. Isolated, transient symptoms of ODD are normal during development. Mood disorders, attention-deficit/hyperactivity disorder, and neurodevelopmental disorders are important considerations in differential diagnosis. However, ODD frequently co-occurs with other psychiatric diagnoses. Complex interactions with temperamental emotional dysregulation, family stress, early life stress, inconsistent parenting, and genetic and physiologic factors likely underlie the risk, pathophysiology, and prognosis of ODD. Unfortunately, these interactions and the neurobiological underpinnings of ODD are still poorly characterized. Although first-line treatments for ODD involve behavioral and psychosocial interventions, a thoughtful consideration of pharmacotherapy for co-occurring disorders and severe symptoms is an important component of treatment planning. Herein we review the epidemiology, etiology, pathophysiology, diagnostic evaluation, and treatment planning of ODD. Recent applicable controversies such as dimensional conceptualization of psychiatric disorders and the potential intersection of ODD and disruptive mood dysregulation disorder are also summarized.  This review contains 5 figures, 4 tables, and 44 references. Key words: aggression, attention-deficit/hyperactivity disorder, conduct disorder, defiance, disruptive behaviors, disruptive mood dysregulation disorder, DSM-5, irritability, oppositional defiant disorder, parent management training


2012 ◽  
Vol 12 (3) ◽  
pp. 28-38
Author(s):  
E. Snircova ◽  
T. Kulhan ◽  
G. Nosalova ◽  
I. Ondrejka

Abstract Attention-deficit/hyperactivity disorder (ADHD) in childhood or adolescence is associated with a significantly higher lifetime risk of oppositional defiant disorder, anxiety disorder, conduct disorder, among others. Reports of co-morbidity rates are variable and influenced by assesment methodology and refferal bias, and may reflect lifetime rates within clinical groups. Up-to date studies revealed that as many as 85% of patients with ADHD have at least one psychiatric comorbidity and approximately 60% have at least two. Research and clinical practice has shown that having multiple co-existing psychiatric problems increase the severity of ADHD and behavioural problems, and is associated with incereased psychosocial impairment. The high rate of psychiatric problems co-occuring with ADHD has strong implications for the management of these patients. The presence of co-existing psychiatric conditions may moderate the response to treatment of ADHD and ADHD treatments may adversely affect and exacerbate the symptoms of the co-morbit condition. The aim of this article was to summarize the use of atomoxetine in the most frequent co-morbid disorders accompaining ADHD, ODD (oppositional defiant disorder) and anxiety, and to emphazise decrease of co-morbid symptoms with treatment of atomoxetine what exhort us to think about them as about possible subtypes of ADHD.


PEDIATRICS ◽  
1993 ◽  
Vol 92 (2) ◽  
pp. 212-218
Author(s):  
Russell A. Barkley ◽  
David C. Guevremont ◽  
Arthur D. Anastopoulos ◽  
George J. DuPaul ◽  
Tern L. Shelton

Objective. To determine whether teenagers and young adults with attention deficit hyperactivity disorder (ADHD) have more motor vehicle citations and crashes and are more careless drivers than their normal peers. Design. A comparison of two groups of teenagers and young adults (ADHD and normal) followed up 3 to 5 years after original diagnosis. Setting. A university medical center clinic for ADHD patients. Patients. Thirty-five subjects with ADHD and 36 control subjects between 16 and 22 years of age, all of whom were licensed drivers. Main outcome measures. Parent ratings of current symptoms of ADHD, oppositional defiant disorder, and conduct disorder, a survey of various negative driving outcomes, and a rating scale of driving behavior. Results. Subjects with ADHD used less sound driving habits. This deficiency was associated with greater driving-related negative outcomes in all categories surveyed. Subjects with ADHD were more likely than control subjects to have had auto crashes, to have had more such crashes, to have more bodily injuries associated with such crashes, and to be at fault for more crashes than control subjects. They were also more likely to have received traffic citations and received more such citations than control subjects, particularly for speeding. The subgroup of teenagers with ADHD having greater comorbid oppositional defiant disorder and conduct disorder symptoms were at highest risk for such deficient driving skills/habits and negative driving-related outcomes. Conclusions. ADHD, and especially its association with oppositional defiant disorder/conduct disorder, is associated with substantially increased risks for driving among teenagers and young adults and worthy of attention when clinicians counsel such patients and their parents.


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