Anxiety in boys with attention-deficit/hyperactivity disorder with and without chronic multiple tic disorder

Does Anxiety Symptomatology Affect Bullying Behavior in Children and Adolescents with ADHD?

Background

Anxiety disorders are common comorbidities in children and adolescents with attention-deficit/hyperactivity disorder (ADHD) who are also at a high risk of bullying behavior. However, little is known about the roles of anxiety symptomatology in the relationship between ADHD and bullying behavior.

Objective

This cross-sectional, clinic-based study aims to investigate the associations between anxiety symptomatology and bullying involvement in youth with ADHD.

Method

One hundred and eighty children and adolescents with ADHD aged 10–18 years participated in the study. The Screen for Child Anxiety-Related Emotional Disorders (SCARED) was self-rated, and the participants were interviewed with the Revised Olweus Bully/Victim Questionnaire to categorize bullying involvement. Data were analyzed through percentage, nonparametric statistics, chi-squared statistics, and logistic regression analysis.

Results

Sixty-nine percent of youth with ADHD reported involvement in bullying, of which 33.3%, 8.9%, and 27.2% were classified as victims, bullies, and bully-victims, respectively. The means and 95% confidence intervals of the total SCARED scores showed a significant difference among bullying behavior groups. The highest SCARED scores could be noticed in the victim and bully-victim groups, with the lowest scores observed in the bully group. Youth with ADHD who had comorbid anxiety were 3.51 times more likely to be bullied than those who did not have anxiety.

Conclusions

A differential effect of anxiety symptomatology on bullying behavior in youth with ADHD was evident. These results highlight the utility of including anxiety in the conceptualization of bullying problems in youth with ADHD to plan successful anti-bullying interventions.

Anxiety Symptoms Differ in Youth With and Without Tic Disorders

We compared anxiety symptoms in youth with and without tic disorders by comparing scores on the Multidimensional Anxiety Scale for Children (MASC) in youth with tic disorders to those in a concurrent community control group and in a group of treatment-seeking anxious youth from the Child/Adolescent Anxiety Multimodal Study (CAMS). Data from 176 youth with tic disorders, 93 control subjects, and 488 CAMS participants were included. Compared to youth with tic disorders, controls had lower total MASC scores (p < 0.0001) and CAMS participants had similar total MASC scores (p = 0.13). Separation Anxiety (p = 0.0003) and Physical Symptom (p < 0.0001) subscale scores were higher in youth with tic disorders than in CAMS participants. We conclude that the anxiety symptom profile differs in youth with and without tic disorders, which may have important implications for targeting treatment of anxiety in youth with tic disorders.

An examination of the association between anxiety and social functioning in youth with ADHD: A systematic review

Although up to 50% of children with Attention-Deficit/Hyperactivity Disorder (ADHD) meet criteria for an anxiety disorder, it is unclear how comorbid anxiety influences social functioning for this population. Understanding the factors associated with social functioning in ADHD is important given the limited efficacy of existing social skills interventions for this population. This systematic review aimed to determine the association between anxiety and social functioning (social problems, peer status, and social skills/ competence) in children and adolescents with ADHD. A standardised search protocol was used, identifying 4807 articles for screening with 31 included in the final review. Anxiety symptom severity was associated with lower levels of social skills and higher levels of social problems in young people with ADHD. However, few differences emerged when defining anxiety based on diagnostic measures. Although the results varied considerably amongst studies, a number of key variables emerged that influenced the associations between anxiety and social functioning including the type of reporter and sample characteristics such as age, sex, ADHD subtype and other mental health comorbidities. These findings have implications for social functioning interventions in ADHD given the role of anxiety symptoms in predicting poorer social functioning.

Chronic tic disorders in children with ADHD

OBJECTIVE

To examine in a community-based cohort: (1) the prevalence of chronic tic disorder (CTD) in children with attention-deficit/hyperactivity disorder (ADHD) compared with non-ADHD controls at ages 7 and 10; and (2) the additional psychiatric and functional burden of CTD in children with ADHD.

METHODS

Children aged 6-8 years with ADHD (n=179) and controls (n=212) were recruited through 43 Victorian schools using parent and teacher screening surveys (Conners 3 ADHD Index), followed by case confirmation (Diagnostic Interview Schedule for Children-IV (DISC-IV)). CTD was identified using the DISC-IV categories chronic motor tic disorder, chronic vocal tic disorder or Tourette syndrome at baseline and 36-month follow-up. Internalising and externalising disorders, social functioning, academic performance and quality of life were also measured. Tests of proportions and independent t-tests were used to compare the ADHD+CTD group with sex-matched ADHD alone children.

RESULTS

Compared with controls, children with ADHD were 4.1 (95% CI 1.1 to 14.1) times more likely to have CTD at age 7, and 5.9 (95% CI 1.6 to 17.9) times more likely at age 10. Children with ADHD+CTD experienced higher rates of internalising disorders and peer problems, and poorer quality of life than those with ADHD alone.

CONCLUSIONS

CTD prevalence is higher in children with ADHD compared with controls, and confers substantial additional psychiatric and functional burden. Clinicians need to consider CTD in both the initial assessment and ongoing management of children with ADHD, and address both the symptoms and the associated impairments.

Impact of Tourette Syndrome on School Measures in a Nationally Representative Sample

OBJECTIVE

Children with Tourette syndrome (TS) are at risk for a variety of co-occurring conditions and learning and school problems. The purpose of this study was to determine the impact of TS and co-occurring conditions on school measures.

METHODS

Parent-reported data from the 2007-2008 and 2011-2012 National Survey of Children's Health were combined (n = 129,353 children aged 6-17 yrs). Parent report of health care provider diagnosis of TS; co-occurring mental, emotional, and behavioral conditions; learning and language conditions; and school measures were assessed. School measures included type of school, individual education plan (IEP), number of school days missed, school problems, doing well in school, doing homework, and repeating a grade. Children with TS were compared with those who never had TS on school measures accounting for co-occurring conditions.

RESULTS

After adjusting for demographics, compared with children without TS, children currently with TS were more likely to have an IEP, have a parent contacted about school problems, and not complete homework. After further adjusting for co-occurring conditions, only IEP status remained statistically significant. Compared with children with mild TS, children with moderate or severe TS were more likely to have an IEP, repeat a grade, encounter school problems, and not care about doing well in school.

CONCLUSION

Tourette syndrome severity and co-occurring conditions are associated with school challenges and educational service needs. Awareness among health care providers, teachers and parents of the potential challenges related to both TS and co-occurring conditions would help to best support the child's education.

The natural course of anxiety symptoms in early adolescence: factors related to persistence

BACKGROUND AND OBJECTIVES

Anxiety disorders are the most common mental health problems during childhood and adolescence. This study examined the course of anxiety symptoms in early adolescents from the general population over three phases.

DESIGN

Prospective cohort study.

METHODS

Two hundred and forty-two participants (mean-age of 13.52) from a baseline sample of 1514 (mean-age of 10.23) were followed up three times. Of the 1514 children, those with emotional risk and controls without risk constituted the second-phase sample (n = 562; mean-age of 11.25). The Screen for Child Anxiety Related Emotional Disorders-SCARED was administered in all three phases.

RESULTS

Fifty-six percent and 32% of respondents showed total scores above the SCARED cutoff point at one and three years follow-up, respectively. Eight percent showed fluctuating symptoms. Fifty-five percent of respondents showed high scores for any subtype of anxiety over three years. Social phobia and generalized anxiety symptoms were the most prevalent and persistent. Participants with persistent separation anxiety showed the highest co-occurrence with symptoms of other psychopathological disorders. Participants with persistent anxiety showed lower academic performance. Being male was a protective factor against persistence.

CONCLUSIONS

The data support anxiety maintenance during early adolescence. Early adolescence is a critical period which may involve other serious academic, social, and family problems.

Decreased Anterior Cingulate Cortex γ-Aminobutyric Acid in Youth With Tourette's Disorder

BACKGROUND

γ-Aminobutyric acid has been implicated in the pathophysiology of Tourette's disorder. The present study primarily sought to examine in vivo γ-aminobutyric acid levels in the anterior cingulate cortex in psychotropic medication-free adolescents and young adults. Secondarily, we sought to determine associations between γ-aminobutyric acid in the anterior cingulate cortex and measures of tic severity, tic-related impairment, and anxiety and depression symptoms.

METHODS

γ-Aminobutyric acid levels were measured using proton magnetic resonance spectroscopy. Analysis of covariance compared γ-aminobutyric acid levels in 15 youth with Tourette's disorder (mean age = 15.0, S.D. = 2.7) and 36 healthy comparison subjects (mean age = 15.9, S.D. = 2.1). Within the Tourette disorder group, we examined correlations between γ-aminobutyric acid levels and tic severity and tic-related impairment, as well as anxiety and depression severity.

RESULTS

Anterior cingulate cortex γ-aminobutyric acid levels were lower in participants with Tourette's disorder compared with control subjects. Within the Tourette disorder group, γ-aminobutyric acid levels did not correlate with any clinical measures.

CONCLUSIONS

Our findings support a role for γ-aminobutyric acid in Tourette's disorder. Larger prospective studies will further elucidate this role.

[From tic disorders to Tourette syndrome: current data, comorbidities, and therapeutic approach in children]

Motor tics are frequently observed in children during development. Usually transient and benign, they can become chronic over time, join various morbid disorders (vocal tics, attention deficit and hyperactivity disorder, and obsessive-compulsive disorders) and move toward genuine Tourette syndrome. In this case, it will be necessary to prevent impacts - mainly in terms of quality of life and emotional and relational problems - using a global therapeutic strategy combining psychoeducational approaches with appropriate medication.

Aripiprazole in children with Tourette's disorder and co-morbid attention-deficit/hyperactivity disorder: a 12-week, open-label, preliminary study

Tourette's disorder (TD) in children and adolescents is frequently co-morbid with attention-deficit/hyperactivity disorder (ADHD). Dopamine-blockers are the first line treatment for TD, whereas dopamine-agonists, such as stimulants, are the gold-standard in the treatment of ADHD. These contrasting effects supported concerns about the risk that stimulants for treating ADHD may trigger or worsen co-morbid tics. Aripiprazole, a partial dopamine agonist, acts as an antagonist at dopamine D2 receptors in hyperdopaminergic conditions and displays agonist properties under hypodopaminergic conditions. The present study describes the use of aripiprazole (10.0 ± 4.8 mg/day) in a consecutive group of 28 patients with a primary diagnosis of TD and co-morbid ADHD, combined subtype. The Yale Global Tic Severity Scale (YGTSS) and the ADHD-Rating Scale (ADHD-RS-IV) were used as primary outcome measures and both significantly improved (p<0.001) after the treatment. Global measures of severity (Clinical Global Impressions-Severity) and of functional impairment (Children's Global Assessment Scale) also significantly improved during the treatment (p<0.001). At the YGTSS there was a reduction of 42.5%, in motor tics, of 47.9% in phonic tics (44.7% for the combined scores), and of 32.3% in tic impairment. Nineteen patients (67.9%) had a reduction of at least 50% of the YGTSS score (motor+phonic tics). The improvement at the ADHD-RS-IV score was 22.5%, 12 patients (42.8%) presented an improvement of 30%, but only 2 (7.1%) an improvement greater than 50%. Using a logistic regression model, a reduction of at least 30% in ADHD-RS-IV score was more likely to occur in the obsessive-compulsive disorder co-morbid group. Aripiprazole was well tolerated and none of the patients discontinued medication because of side effects. In summary, aripiprazole resulted in an effective treatment for TD, but it was only moderately effective on co-occurring ADHD symptomatology. Our preliminary data suggest that aripiprazole may represent a possible therapeutic option, among other possible monotherapies addressing both tics and ADHD.

Methylphenidate and comorbid anxiety disorder in children with both chronic multiple tic disorder and ADHD

OBJECTIVE

To determine if comorbid anxiety disorder is associated with differential response to immediate release methylphenidate (MPH-IR) in children with both ADHD and chronic multiple tic disorder (CMTD).

METHOD

Children with (n = 17) and without (n = 37) diagnosed anxiety disorder (ANX) were evaluated in an 8-week, placebo-controlled trial with rating scales and laboratory measures.

RESULTS

The +ANX group obtained more severe parent, teacher, and child ratings of anxiety and more severe parent ratings of depression, tics, oppositional defiant disorder (ODD), and peer aggression than the -ANX group. Treatment with short-term MPH-IR was associated with improvement in ADHD, ODD, and peer aggression in the +ANX group. When controlling for ODD severity, there were no apparent group differences in therapeutic response to MPH-IR in children ±ANX. There was little evidence that MPH-IR contributed to improvement in anxiety or depression symptoms in the +ANX group. There was some indication that children with comorbid anxiety may differentially experience greater increase in systolic blood pressure (0.5 mg/kg of MPH-IR > placebo).

CONCLUSION

Findings suggest that the co-occurrence of diagnosed CMTD+ADHD+ANX represents a particularly troublesome clinical phenotype, at least in the home setting. Comorbid anxiety disorder was not associated with a less favorable response to MPH-IR in children with ADHD+CMTD, but replication with larger samples is warranted before firm conclusions can be drawn about potential group differences.

Anxiety symptoms in boys with autism spectrum disorder, attention-deficit hyperactivity disorder, or chronic multiple tic disorder and community controls

We compared symptoms of generalized anxiety disorder (GAD) and separation anxiety disorder (SAD) in 5 groups of boys with neurobehavioral syndromes: attention-deficit/hyperactivity disorder (ADHD) plus autism spectrum disorder (ASD), ADHD plus chronic multiple tic disorder (CMTD), ASD only, ADHD only, and community Controls. Anxiety symptoms were assessed using parent and teacher versions of a DSM-IV-referenced rating scale. All three groups of boys with co-morbid ADHD evidenced more severe anxiety than Controls. Group differences in anxiety varied as a function of symptom, disorder, informant, and co-morbidity supporting the notion that co-morbid neurobehavioral syndromes differentially impact clinical features of co-occurring anxiety symptoms. Findings also suggest that GAD and SAD are phenomenologically unique, even in children with ASD. Implications for nosology are discussed.