Irritability in children and adolescents: past concepts, current debates, and future opportunities

Pediatric suicide: Review of a preventable tragedy

Concepts of suicide are explored in this issue with a focus on suicide in children and adolescents. The epidemiology of pediatric suicide in the United States is reviewed; also, risk and protective factors, as well as prevention strategies, are discussed. Suicide in the pediatric athlete and the potential protective effect of exercise are examined. In addition, this analysis addresses the beneficial role of psychological management as well as current research on pharmacologic treatment and brain stimulation procedures as part of comprehensive pediatric suicide prevention. Though death by suicide in pediatric persons has been and remains a tragic phenomenon, there is much that clinicians, other healthcare professionals, and society itself can accomplish in the prevention of pediatric suicide as well as the management of suicidality in our children and adolescents.

A New Behavioral Paradigm for Frustrative Nonreward in Juvenile Mice

Background

Irritability, defined as proneness to anger, can reach a pathological extent. It is a defining symptom of disruptive mood dysregulation disorder and one of the most common reasons youths present for psychiatric evaluation and care. Aberrant responses to frustrative nonreward (FNR), the response to omission of expected reward, are central to the pathophysiology of irritability. FNR is a translational construct to study irritability across species. The development of preclinical FNR models would advance mechanistic studies of the important and relatively understudied clinical phenomenon of irritability.

Methods

We used FNR as a conceptual framework to develop a novel mouse behavioral paradigm named alternate poking reward omission. Juvenile mice were exposed to alternate poking reward omission and then examined with a battery of behavioral tests to determine the behavioral effect of FNR.

Results

FNR increased locomotion and aggression regardless of sex. These behavioral changes elicited by FNR resemble the symptoms observed in youth with severe irritability. FNR had no effect on anxiety-like, depression-like, or nonaggressive social behaviors.

Conclusions

Our alternate poking reward omission paradigm effectively elevated aggression and locomotion in juvenile mice. These frustration effects are directly related to behavioral symptoms of youth with severe irritability. Our novel behavioral paradigm lays the groundwork for further mechanistic studies of frustration and irritability in rodents.

Trajectories of oppositional defiant disorder severity from adolescence to young adulthood and substance use, mental health, and behavioral problems

Background

Oppositional Defiant Disorder (ODD) is a disruptive behavioral disorder; however, increasing evidence emphasizes irritable mood as a primary symptom of ODD.

Objectives

This study investigated whether heterogeneous groups (classes) of individuals can be differentiated based on ODD sub-dimensions (irritability and defiance) or on overall ODD symptoms longitudinally. We also examine associations between ODD trajectory class and comorbid substance use (heavy episodic drinking, cannabis use), mental health (depression and anxiety) and behavioral symptoms (ADHD, aggression and substance use) in both adolescence and young adulthood (controlling for adolescent levels of each of these concerns).

Method

Data were from a randomly recruited community sample of 662 Canadian youth (T1 ages 12-18) followed biennially for 10 years (T6 ages 22-29).

Results

Growth mixture models revealed trajectories classes of ODD based on severity of symptoms. A three-class solution provided the best fit with Low (n = 119; 18%), Moderate (n = 473; 71.5%), and High (n = 70; 10.6%) ODD classes. Class trajectory differences were similarity based on symptoms severity (rather than type) for symptom sub-dimensions (irritability defiance). Adolescent and young adult substance use, mental health symptoms, and behavioral problems were significantly higher for the High ODD trajectory class compared to both other classes. Youth in the Moderate ODD trajectory class also showed higher comorbid symptoms in adolescence and young adulthood, compared to the Low ODD trajectory class.

Conclusion

Early identification of children and adolescents with high or moderate ODD symptoms and interventions that simultaneously address defiance and irritability are supported by the findings.

Irritability: A concept analysis

Irritability is a term used to describe feelings of anger, annoyance and impatience, and is commonly experienced by individuals in daily life. However, there are diverse conceptualizations of irritability in public and clinical research, which often result in confusing irritability with anger and other overlapping concepts. This, in turn, leads to a lack of conceptual clarity. Accordingly, the purpose of this concept analysis was to explore the irritability concept, including its definitions, defining characteristics, antecedents, consequences and empirical referents. The findings showed that irritability is predominantly conceptualized as a psychophysiological concept in the literature. We demonstrated that irritability can be differentiated from overlapping concepts like anger by qualities, such as 'unpredictability and lowered emotion control', 'lowered threshold for negative emotional stimuli', 'being manifested in response to frustrative situations or physiological needs' and 'experience of disproportionate and unjustified emotional irritation'. Importantly, severe irritability prospectively predicts psychiatric disorders and greater impairments in health, financial, educational and social functioning in individuals. Taken together, our analysis showed that one should take into account the context, duration, intensity and importantly outcomes, when assessing irritability in an individual. Considering these findings and the presence of irritability in nursing practice, it is crucial for nurses to recognize and successfully identify this concept in the nursing care they provide within the diverse settings and patient populations.

Parenting and childhood irritability: Negative emotion socialization and parental control moderate the development of irritability

Irritability, characterized by anger in response to frustration, is normative in childhood. While children typically show a decline in irritability from toddlerhood to school age, elevated irritability throughout childhood may predict later psychopathology. The current study (n = 78) examined associations between trajectories of irritability in early childhood (ages 2-7) and irritability in adolescence (age 12) and tested whether these associations are moderated by parenting behaviors. Results indicate that negative emotion socialization moderated trajectories of irritability - relative to children with low stable irritability, children who exhibited high stable irritability in early childhood and who had parents that exhibited greater negative emotion socialization behaviors had higher irritability in adolescence. Further, negative parental control behavior moderated trajectories of irritability - relative to children with low stable irritability, children who had high decreasing irritability in early childhood and who had parents who exhibited greater negative control behaviors had higher irritability in adolescence. In contrast, positive emotion socialization and control behaviors did not moderate the relations between early childhood irritability and later irritability in adolescence. These results suggest that both irritability in early childhood and negative parenting behaviors may jointly influence irritability in adolescence. The current study underscores the significance of negative parenting behaviors and could inform treatment.

A New Behavioral Paradigm for Frustrative Non-reward Reveals a Global Change in Brain Networks by Frustration

Background

Irritability, defined as proneness to anger, can reach a pathological extent. It is a defining symptom of Disruptive Mood Dysregulation Disorder (DMDD) and one of the most common reasons youth presents for psychiatric evaluation and care. Aberrant responses to frustrative non-reward (FNR, the response to omission of expected reward) are central to the pathophysiology of irritability. FNR is a translational construct to study irritability across species. The development of preclinical FNR models would advance mechanistic studies of the important and relatively understudied clinical phenomenon of irritability.

Methods

We used FNR as a conceptual framework to develop a novel mouse behavioral paradigm named Alternate Poking Reward Omission (APRO). After APRO, mice were examined with a battery of behavioral tests and processed for whole brain c-Fos imaging. FNR increases locomotion and aggression in mice regardless of sex. These behavioral changes resemble the symptoms observed in youth with severe irritability. There is no change in anxiety-like, depression-like, or non-aggressive social behaviors. FNR increases c-Fos+ neurons in 13 subregions of thalamus, iso-cortex and hippocampus including the prelimbic, ACC, hippocampus, dorsal thalamus, cuneiform nucleus, pons, and pallidum areas. FNR also shifts the brain network towards a more global processing mode.

Conclusion

Our novel FNR paradigm produces a frustration effect and alters brain processing in ways resembling the symptoms and brain network reconfiguration observed in youth with severe irritability. The novel behavioral paradigm and identified brain regions lay the groundwork for further mechanistic studies of frustration and irritability in rodents.

Behavioral self-regulation in pediatric bipolar disorder and healthy offspring of bipolar patients

OBJECTIVES

This study investigated behavioral self-regulation problems using the Children's Hostility Inventory (CHI) in pediatric bipolar disorder (PBD), healthy offspring of bipolar disorder patients (HOBD), and healthy controls (HC) without previous history of psychiatric disorders.

METHODS

The CHI was administered to 41 consecutive children and adolescents diagnosed with PBD, to 16 HOBD, and to 22 HC. The inventory assessed irritability, expression, hostility, and aggression and was completed by the children with the help of their mothers. Adolescents and their respective parents were interviewed separately using the Schedule for Affective Disorders and Schizophrenia for School-Age Children-Present and Lifetime Version (K-SADS-PL).

RESULTS

All subscales of the CHI presented statistically significant differences, except for the subscale assessing feelings of suspicion. Pairwise comparisons revealed consistently significant differences between the PBD group and controls, indicating more self-regulation difficulties in the PBD group, represented by high levels of hostility and aggressive behavior. There were no significant differences between the PBD and HOBD groups.

CONCLUSIONS

Future studies should further investigate if such behavior is state-dependent or a trait of bipolar juvenile expression. Expression of hostility and irritability should be considered relevant targets in psychosocial approaches addressing this population.

Systematic Review and Meta-analysis: Efficacy of Pharmacological Interventions for Irritability and Emotional Dysregulation in Autism Spectrum Disorder and Predictors of Response

OBJECTIVE

Emotional dysregulation and irritability are common in individuals with autism spectrum disorder (ASD). We conducted the first meta-analysis assessing the efficacy of a broad range of pharmacological interventions for emotional dysregulation and irritability in ASD and predictors of response.

METHOD

Following a preregistered protocol (PROSPERO: CRD42021235779), we systematically searched multiple databases until January 1, 2021. We included placebo-controlled randomized controlled trials (RCTs) and evaluated the efficacy of pharmacological interventions and predictors of response for emotional dysregulation and irritability. We assessed heterogeneity using Q statistics and publication bias. We conducted subanalyses and meta-regressions to identify predictors of response. The primary effect size was the standardized mean difference. Quality of studies was assessed using the Cochrane Risk of Bias Tool (RoB2).

RESULTS

A total of 2,856 individuals with ASD in 45 studies were included, among which 26.7% of RCTs had a high risk of bias. Compared to placebo, antipsychotics (standardized mean difference = 1.028, 95% CI = 0.824-1.232) and medications used to treat attention-deficit/hyperactivity disorder (ADHD) (0.471, 0.061-0.881) were significantly better than placebo in improving emotional dysregulation and irritability, whereas evidence of efficacy was not found for other drug classes (p > .05). Within individual medications, evidence of efficacy was found for aripiprazole (1.179, 0.838-1.520) and risperidone (1.074, 0.818-1.331). Increased rates of comorbid epilepsy (β = -0.049, p = .026) were associated with a lower efficacy.

CONCLUSION

Some pharmacological interventions (particularly risperidone and aripiprazole) have proved efficacy for short-term treatment of emotional dysregulation and irritability in ASD and should be considered within a multimodal treatment plan, taking into account also the tolerability profile and families' preferences.

Validation of the Italian version of the clinician affective reactivity index (CL-ARI)

INTRODUCTION

Irritability represents a transdiagnostic symptom in youths, which can become a predictor of long-term psychosocial adversity. Yet, few tools investigate this symptom in childhood. The aim of this study was to evaluate the psychometric properties of the CL-ARI in an Italian population, analyzing the correlations between irritability and other pathological constructs.

MATERIALS AND METHODS

A cross-sectional study was carried out in a Child Neuropsychiatry Unit in Rome. A transdiagnostic sample of 67 youths aged 7-17 years, which underwent to a psychodiagnostic evaluation, was administered by a clinician with the translated version of the CL-ARI, along with tools exploring irritability and other constructs (depressive symptoms, anxiety, global impairment in functioning).

RESULTS

The most frequent diagnosis obtained by the psychodiagnostic evaluation was anxiety disorder, followed by disruptive mood dysregulation disorder (DMDD) and no diagnosis. Cronbach's alpha values revealed good internal consistency for the total score (0.86), as well as for the score of each subscale of the tool (0.81 for temper outbursts, 0.89 for irritable mood, 0.71 for impairment). Test-retest reliability showed excellent values (ICC 0.89 to 0.98), and criterion validity exhibited good correlation among the sub-scales and between each sub-scale and the total score. Finally, positive correlations were found between total scores of the parent and the child interview, and between the CL-ARI, the measure of DMDD severity (CGI) and of depressive symptoms (CDI 2).

CONCLUSIONS

These data confirmed that the CL-ARI is a promising tool designed to intercept irritability, with good psychometric properties. Further research on the assessment of irritability is critical and thus encouraged.

White matter integrity in adolescent irritability: A preliminary study

Irritability is a prevalent, impairing transdiagnostic symptom, especially during adolescence, yet little is known about irritability's neural mechanisms. A few studies examined the integrity of white matter tracts that facilitate neural communication in irritability, but only with extreme, disorder-related symptom presentations. In this preliminary study, we used a group connectometry approach to identify white matter tracts correlated with transdiagnostic irritability in a community/clinic-based sample of 35 adolescents (mean age = 14 years, SD = 2.0). We found positive and negative associations with irritability in local white matter tract bundles including sections of the longitudinal fasciculus; frontoparietal, parolfactory, and parahippocampal cingulum; corticostriatal and thalamocortical radiations; and vertical occipital fasciculus. Our findings support functional neuroimaging studies that implicate widespread neural pathways, particularly emotion and reward networks, in irritability. Our findings of positive and negative associations reveal a complex picture of what is "good" white matter connectivity. By characterizing irritability's neural underpinnings, targeted interventions may be developed.

Investigating the associations between irritability and hot and cool executive functioning in those with ADHD

BACKGROUND

Irritability is especially pertinent to those with Attention Deficit Hyperactivity Disorder (ADHD) as it is highly prevalent and associated with a more severe clinical presentation and poorer longitudinal outcomes. Preliminary evidence suggests that top-down cognitive processes taking place in emotional contexts (i.e., hot executive functions) as opposed to those evoked in abstract scenarios (i.e., cool executive functions) may be relevant to the presentation of irritability in ADHD. This study explored the cognitive mechanisms underlying irritability in young people with ADHD, hypothesising that irritability would be associated with hot, but not cool, executive function impairments.

METHODS

Our sample included 219 individuals with ADHD. A composite irritability score was derived extracting items from a parent interview, with scores ranging from 0 to 5. Associations were investigated using linear regression analyses, between irritability and four hot tasks measuring sensitivity to risk, risk-taking behaviour following reward or punishment, acceptance of reward delay and reaction to unfair behaviour from others, and two cool tasks measuring set-shifting and motor inhibition.

RESULTS

As hypothesised, there were no significant associations between irritability and cool executive functions in those with ADHD; however, contrary to expectations, there was also no significant evidence that hot executive functions were associated with irritability.

CONCLUSIONS

These results, in a large well characterised sample and using a comprehensive task battery, suggest that the variation in irritability in those with ADHD may not be associated with differences in hot or cool executive function performance.

Assessing anger and irritability in children: psychometric evaluation and normative data for the German version of the PROMIS® Parent Proxy Anger Scale

PURPOSE

Anger and irritability are common and impairing symptoms in children. The PROMIS Anger scales assess self- and parent-reported irritable and angry mood over the past 7 days. The aim of this study was to evaluate the psychometric properties of the German version of the PROMIS Parent Proxy Short Form v1.0-Anger and to provide normative data.

METHODS

To evaluate the psychometric properties, data from the study ADOPT Epidemiology were used. In this study, the PROMIS Anger Scale was administered to a population-based sample of n = 8746 parents of children aged 8-12 years. Psychometric analyses were carried out including the investigation of distribution characteristics, factor structure, model fit, internal consistency, and congruent validity. Normative data were calculated as percentile ranks and T-scores.

RESULTS

The PROMIS Anger Scale demonstrated good psychometric properties, including satisfactory distribution characteristics, unidimensionality, good internal consistency as well as congruent validity. German normative data for the PROMIS Anger Scale are presented.

CONCLUSION

Based on first psychometric analyses, the German version of the PROMIS Anger Scale can be recommended for use in research and practice; however, further investigations using clinical data are needed. The normative data will allow researchers and clinicians an interpretation of the test scores in future applications.

Research Audit on Clinical Utility of Dimensional Disruptive Mood and Behavior Psychopathologies in Child and Adolescent Psychiatry Practice

To investigate the utility of dimensional psychopathologies of disruptive mood and behavior disorders (DBDs) by applying latent profile analysis (LPA) for characterization of youth referred to the tertiary outpatient clinic of child and adolescent psychiatry clinic and pharmacological treatment choices. One hundred fifty-eight children and adolescents with significant DBDs symptoms participated. Core dimensional psychopathologies of DBDs (irritability, callous-unemotional trait, and reactive-proactive aggressive behavior), DSM diagnoses, prescribed medications, and behavioral and emotional problems (Child Behavior Checklist, CBCL) were measured at baseline (clinic intake) and at 3-month follow-up. Latent Profile Analysis (LPA) was applied to characterize the study population based on the levels and interrelations among the core dimensional DBDs psychopathologies. Following LPA, the differences in clinical and treatment features between the latent classes were analyzed. LPA revealed two latent classes based on severity of DBDs symptoms. Class 1 (the moderate group) was characterized by relatively low scores on all trans-diagnostic indicators, whereas class 2 (the severe/critical group) showed higher levels of the dimensional psychopathologies and the majority of CBCL subscales. In addition, the severe/critical group was more often prescribed antipsychotic medications, and also experienced more frequent medication changes (addition, increasing the dose, and trial of different medications). Our findings suggested that application of LPA to a cluster of dimensional DBDs psychopathologies may provide valuable characterization of the youths referred to a tertiary outpatient child and adolescent psychiatric clinic, and offer insight into the providers' decision making on psychotropic medications, by overall severity of these psychopathologies rather than by single categorical diagnosis or single externalizing psychopathology.

Psychometric Properties of The Clinician Affective Reactivity Index for Assessment of Irritability in a Clinical Sample of Turkish Children and Adolescents

Background

No clinician-oriented scale exists to assess irritability in Turkey. This pilot study aimed to evaluate the psychometric properties of the Turkish version of The Clinician Affective Reactivity Index (CL-ARI).

Method

A total of 116 children and adolescents aged between 10 to 17 years (14.1 ± 2.1 years) were recruited from the psychiatric outpatient clinics. The participants completed a set of scales (Strengths and Difficulties Questionnaire [SDQ], Affective Reactivity Index [ARI], Revised Child Anxiety and Depression Scale, Swanson, Nolan, and Pelham, Version IV Scale). Diagnostic interviews were administered to confirm psychiatric diagnoses. Cronbach's alpha was calculated to assess internal consistency. Discriminant validity was further tested using independent sample t-test and Receiver Operating Characteristic curves. Interrater reliability was tested using intraclass correlation coefficients (ICC). Convergent validity was also tested using Pearson's correlation.

Results

Cronbach's alpha values of CL-ARI were 0.919 total score, 0.842 for the temper outbursts score, 0.861 for the irritable mood score, and 0.840 for the impairment score. ICC values for interrater reliability were high for the temper outbursts (r = 0.993), the irritable mood (r = 0.993), the impairment (r = 0.917), and the total score (r = 0.991). In the sample, there was a high level of correlation between the self-report ARI-child/parent form and the CL-ARI total and subscale scores. Likewise, moderate-high level of correlations were found between the behavioral SDQ child/parent forms and the CL-ARI total and subscale scores.

Conclusions

This is the Turkish validation of the CL-ARI, a dedicated interview and rating scale to assess irritability in the clinical sample. The results of this study suggest that the Turkish version of CL-ARI has adequate internal consistency and interrater reliability, and sufficient convergent and discriminant validity to be used in research settings.

Post-traumatic stress disorder, depression and the associated factors among children and adolescents with a history of maltreatment in Uganda

Worldwide, children who grow up under adverse conditions risk the development of mental health problems. However, reliable data on the estimated magnitude of mental disorders of PTSD, depression and their associated factors among maltreated children and adolescents in low- and middle-income-countries (LMICs) is still lacking. This study estimated the magnitude of PTSD, depression and the associated factors among the children and adolescents with ahistory of maltreatment in Southwestern Uganda.

METHODS

In this cross-sectional study, we assessed 232 children and adolescents on the prevalence of PTSD using Child PTSD Symptoms Scale for DSM-5 - Self-Report (CPSS-VSR) and Depression using the Center for Epidemiological Studies Depression Scale for Children (CES-DC). Predictor variables were taken from the Maltreatment and Abuse Chronology of Exposure- Paediatric Version (Pedi MACE). Logistic regressions analyses were selected for statistical modelling while odds-ratios were calculated to assess the strength of associations between the predictor and outcome variables.

RESULTS

In total, 140 (60%) participants fulfiled diagnostic criteria for PTSD and 91 (39%) for depression respectively. Predictor variables of PTSD were witnessing intimate partner violence (OR = 1.48, 95% CI: 1.19-1.83, p = <0.001), having lived in more than two homes (OR = 2.69, 95%CI: 1.34-5.41, p = .005), and being cared for by non-relatives (OR = 2.25; 95%CI: 2.26-223.9, p = .008). Variables predicting depression were witnessing intimate partner violence (OR = 1.30; 95%CI: 108-1.57, p = .006); being cared for by non-relatives (OR = 5.62, 95%CI: 1.36-23.1, p = .001) and being female (OR = .054, 95% CI: 0.30-1.00, p = .005).

CONCLUSION

Children living under adverse conditions are at a higher risk of developing PTSD and depression. We recommend interventions that aim at reducing adverse psychosocial stressors so as to improve or restore the children's mental health.Abbreviations: PTSD: Post traumatic stress disorder; LMICs: Low- and middle-income countries; IPV: Intimate partner violence; OVC: Orphans and vulnerable children.

Irritability-related neural responses to frustrative nonreward in adolescents with trauma histories: A preliminary investigation

Irritability, conceptualized as a lowered frustration response threshold to blocked goal attainment (i.e., frustrative nonreward), is a common, detrimental symptom in adolescence. Yet, neural mechanisms of irritability are not well understood. This preliminary study aims to identify irritability-related neural patterns using a novel frustrative nonreward paradigm. Our study used a diverse sample of N = 31 non-White adolescent participants (mean age 14.53 years, SD = 1.74; 83.87% Hispanic/Latinx) to improve generalizability. During fMRI acquisition, participants performed a child-friendly monetary incentive delay task, modified to provide incorrect, negative feedback on performance. Irritability was associated with alterations in amygdala connectivity with basal ganglia, prefrontal, temporal, and parietal regions, and in activation of prefrontal and posterior cortical structures. Across clusters, youths with greater irritability showed activation/connectivity differences between reward blocked versus received conditions in the opposite direction compared to youths with lowered irritability. Alterations in amygdala-temporoparietal connectivity and lingual gyrus activation demonstrated an altered irritability-related recovery effect from the previous trial. These findings support the central role of frustrative nonreward as a key irritability pathway. Our work is one of the first to document neural correlates of difficult recovery from frustration characteristic of irritability and provides insight into novel treatment targets for irritability in diverse populations.

EARLY PREDICTORS OF ADOLESCENT IRRITABILITY

Limited research has examined precursors/risk factors for adolescent irritability. This study examines continuity of irritability from early childhood to adolescence and identifies antecedents of adolescent irritability. Across self-reports and mother-reports, evidence was found for continuity of irritability. A range of variables assessed at age 3 predicted irritability at age 15. These findings suggest that adolescent irritability is characterized by distinct developmental pathways from age 3 that have potential to result in an irritable phenotype at age 15. Adolescent-reported and mother-reported irritability may be capturing distinct underlying constructs of irritability; both should be considered in assessments of adolescent irritability.

'Pediatric Bipolar Disorder' rates are still lower than claimed: a re-examination of eight epidemiological surveys used by an updated meta-analysis

Background

‘Pediatric bipolar disorder’ (PBD) is a controversial diagnosis with varying rates of clinical diagnosis. A highly cited meta-analysis (Van Meter et al. 2011) of a dozen epidemiological surveys suggested a global community prevalence of PBD of 1.8%. This was updated to 3.9% with eight additional surveys (Van Meter et al. 2019a). In terms of the Cochrane Handbook for Systematic Reviews of Interventions, the heterogenous community surveys were arguably unsuitable for statistical meta-analysis and warranted a narrative analysis. A narrative analysis (Parry et al. 2018) of the original 12 surveys concluded rates of PBD were substantially lower than 1.8% and led to a nine-article debate on the validity, arguable overdiagnosis and iatrogenic aspects of the PBD diagnosis (e.g. Carlson and Dubicka Child Adolesc Mental Health 21:86–87, 2019). This article extends the narrative analysis to include the eight newer community surveys.

Methods

A narrative analysis of the methodologies and the prevalence rates reported by the epidemiological surveys.

Results

Across all twenty surveys there was significant variation in methodologies and reported prevalence rates. Of the eight newer surveys, five (two Brazilian, one English, one Turkish, one United States) provided information of pre-adolescent prevalence rates of bipolar spectrum disorder. These pre-adolescent rates were zero or close to zero. Rates of adolescent hypomania and mania were higher, but follow-up data in two studies suggested hypomania might sometimes achieve prolonged remission or not lead to adult bipolar disorder.

Limitations

Methods in the original surveys vary and criteria used for various bipolar diagnoses were not always fully described. This limitation applies to a narrative analysis but also to a statistical meta-analysis.

Conclusion

Bipolar disorder is very rare in childhood and rare in adolescence. PBD as a diagnostic construct fails to correlate with adult bipolar disorder and the term should be abandoned. Hypomanic syndromes in adolescence may not always progress to adult bipolar disorder. Early diagnosis of bipolar disorder is important, but over-diagnosis risks adverse iatrogenic consequences.

Irritability and mood symptoms in adolescent girls: Trait anxiety and emotion dysregulation as mediators

BACKGROUND

Irritability is a common symptom in youth that is thought to be predictive of mood disorders. Its effects on mood are likely to be age-dependent, with direct and indirect mediators. We assessed age-related effects and mediators of irritability in adolescent girls with subthreshold depressive and manic symptoms.

METHODS

We analysed the irritability item from the Mood Disorder Questionnaire in 3 cohorts of girls aged 12-18years (N=229); 12-13years (N=82); 14-15years (N=68); and 16-18years (N=79). They also completed mood, anxiety and emotion regulation questionnaires. MANOVA, correlations and bootstrapped mediation analyses were performed with SPSS®v25 and Hayes Processv3.5®.

RESULTS

Overall, irritable girls had higher depressive and manic symptoms, trait anxiety and emotion dysregulation than those who were not irritable. Significantly higher rates of irritability were observed in mid-adolescents (aged 14-15years; p = 0.001). Notably, irritability exerted effects on depressive symptoms via trait anxiety, non-acceptance of emotions and dysregulation in emotion clarity throughout adolescence. However, irritability directly exerted effects on manic symptoms in mid-adolescence but in older adolescents, their relationship was indirect via impulse control dysregulation.

LIMITATIONS

The cross-sectional design and non-clinical sample limit generalisability of our findings.

CONCLUSIONS

Irritability is involved in subthreshold depressive symptoms, via trait anxiety and perceptual emotion dysregulation. On the other hand, irritability is directly and indirectly associated with subthreshold manic symptoms via dysregulated impulse control depending on age. Therefore, screening for irritability, trait anxiety and emotion dysregulation throughout adolescence may facilitate the early detection of subthreshold depressive and manic symptoms, and the implementation of preventive strategies.

Neurological Findings in Children without Congenital Microcephaly Exposed to Zika Virus in Utero: A Case Series Study

The Zika virus can induce a disruptive sequence in the fetal brain and is manifested mainly by microcephaly. Knowledge gaps still exist as to whether the virus can cause minor disorders that are perceived later on during the first years of life in children who are exposed but are asymptomatic at birth. In this case series, we describe the outcomes related to neurodevelopment through the neurological assessment of 26 non-microcephalic children who had intrauterine exposure to Zika virus. Children were submitted for neurological examinations and Bayley Scales-III (cognition, language, and motor performance). The majority (65.4%) obtained satisfactory performance in neurodevelopment. The most impaired domain was language, with 30.7% impairment. Severe neurological disorders occurred in five children (19.2%) and these were spastic hemiparesis, epilepsy associated with congenital macrocephaly (Zika and human immunodeficiency virus), two cases of autism (one exposed to Zika and Toxoplasma gondii) and progressive sensorineural hearing loss (GJB2 mutation). We concluded that non-microcephalic children with intrauterine exposure to Zika virus, in their majority, had achieved satisfactory performance in all neurodevelopmental domains. One third of the cases had some impairment, but the predominant group had mild alterations, with low occurrence of moderate to severe disorders, similar to other studies in Brazil.

A Prospective Study of Rumination and Irritability in Youth

Although youth irritability is linked with substantial psychiatric morbidity and impairment, little is known about how personal characteristics influence its course. In this study we examined the prospective associations between angry and depressive rumination and irritability. A sample of 165 school pupils aged 12-14 years were assessed at two time points six months apart. They completed measures of irritability at Times 1 and 2 and depressive and angry rumination at Time 1. In line with our hypotheses, we found that angry rumination is significantly associated with irritability six months later, over and above baseline irritability and depressive rumination. The present findings suggest angry rumination is relevant to the genesis of irritability in adolescents, and point to possible routes for prevention and early intervention.

White Matter Microstructure in Pediatric Bipolar Disorder and Disruptive Mood Dysregulation Disorder

OBJECTIVE

Disruptive mood dysregulation disorder (DMDD) codifies severe, chronic irritability. Youths with bipolar disorder (BD) also present with irritability, but with an episodic course. To date, it is not clear whether aberrant white matter microstructure-a well-replicated finding in BD-can be observed in DMDD and relates to symptoms of irritability.

METHOD

We acquired diffusion tensor imaging data from 118 participants (BD = 36, DMDD = 44, healthy volunteers (HV = 38). Images of fractional anisotropy (FA), axial diffusivity (AD), and radial diffusivity (RD) were processed with tract-based spatial statistics controlling for age and sex. The data were also used to train Gaussian process classifiers to predict diagnostic group.

RESULTS

In BD vs DMDD, FA in the corticospinal tract was reduced. In DMDD vs HV, reductions in FA and AD were confined to the anterior corpus callosum. In BD vs HV, widespread reductions in FA and increased RD were observed. FA in the anterior corpus callosum and corticospinal tract was negatively associated with irritability. The Gaussian process classifier could not discriminate between BD and DMDD, but achieved 68% accuracy in predicting DMDD vs HV and 75% accuracy in predicting BD vs HV.

CONCLUSION

Aberrant white matter microstructure was associated with both categorical diagnosis and the dimension of irritability. Alterations in DMDD were regionally discrete and related to reduced AD. In BD, we observed widespread increases in RD, supporting the hypothesis of altered myelination in BD. These findings will contribute to the pathophysiological understanding of DMDD and its differentiation from BD.

CLINICAL TRIAL REGISTRATION INFORMATION

Studies of Brain Function and Course of Illness in Pediatric Bipolar Disorder; https://clinicaltrials.gov/; NCT00025935; Child & Adolescent Bipolar Disorder Brain Imaging and Treatment Study; https://clinicaltrials.gov/; NCT00006177.

Effect of practice exergames on the mood states and self-esteem of elementary school boys and girls during physical education classes: A cluster-randomized controlled natural experiment

Reduced physical exercise can impact children's mental health. Use of active electronic games can help promote psychological health. Physical education (PE class) uses different resources, methods, and contents to promote student health. We investigated the effect of exergames on the mood and self-esteem of children and compare it that of with traditional PE classes. From a sample of 213 children (7-11 years old), 140 from 10 classes of the fourth and fifth grades of elementary school (59 boys, 81 girls; mean age 9.41±0.48 years), allocated to an experimental group (EG; n = 68; five clusters) and a PE group (PE; n = 72; five clusters), participated in this experimental controlled study. The EG practiced exergames during three 40-minute classes, and the PE group held three routine curricular PE classes. Brunel's Mood Scale and Rosenberg's Self-Esteem Scale were applied. Repeated measures ANOVA identified differences between sexes and groups. The main results of the EG demonstrated reduced tension in girls (p <0.05; ES: 0.62; 95% CI: 0.17-1.05). Regarding sex comparisons, anger was lower in girls (F: 4.57; p <0.05; ES: 0.61; 95% CI: 0.11-1.11) in the EG. Vigor was higher in girls in the EG than in those in the PE group (F: 5.46; p <0.05; ES: 0.56; 95% CI: 0.12-1.01). The main results of the PE group indicated increased self-esteem in boys (p <0.05; ES: 0.58; 95% CI: 0.08-1.07) and reduction of girls' mental confusion (p <0.05; ES 0.58; 95% CI 0.15-1.06). Thus, exergames impact boys' and girls' self-esteem and mood, as well as traditional physical education classes. Further study on exergames in schools is essential, with long-term effects on physical and mental health. Exergames bring interesting, varied content, technology, and innovation that can increase the attractiveness of physical education.

Examining the predictive association of irritability with borderline personality disorder in a clinical sample of female adolescents

OBJECTIVES

Borderline personality disorder (BPD) is a disorder associated with emotion dysregulation and is common in clinical samples of adolescents. The identification and delineation of BPD from other disorders is important, yet methods for effectively screening for BPD are lacking. Here, we examine whether irritability can be used as a screening item for BPD in adolescents at risk for the disorder.

METHODS

We assessed Diagnostic Interview for Borderline-Revised and Development of Well-Being Assessment scores in a clinical sample of female adolescents ages 12-17 (n = 78) to identify BPD and group cases into 'irritable' and 'non-irritable' mood types, respectively. We then examined the prevalence of irritability and its predictive association with BPD.

RESULTS

The prevalence of BPD was 26% (n = 20). There was a significant association between irritable mood and BPD, specifically (χ² (1) = 17.740, p < 0.001). Irritability was endorsed in all (n = 20) BPD cases (sensitivity: 100%), while in non-BPD cases (n = 58), irritability was endorsed in 27 (specificity: 53%; positive predictive value: 0.33; and negative predictive value: 1.0).

CONCLUSION

Irritability is a highly sensitive screening item for BPD in adolescents. The absence of irritability in an adolescent may be an important clinical tool to rule out BPD. © 2020 John Wiley & Sons, Ltd.

Assessment of irritability in school-aged children by pediatric, family practice, and psychiatric providers

BACKGROUND

Irritability, a common behavioral problem for school-aged children, is often first assessed by primary care providers, who manage about a third of mental health conditions in children. Until recent changes in the Diagnostic and Statistical Manual of Mental Disorders (DSM), irritability was often associated with mood disorders, which may have led to increases in bipolar disorder diagnosis and prescription of mood stabilizing medication.

OBJECTIVE

Our aim was to explore differences between the approaches psychiatric and primary care providers use to assess irritability.

METHODS

A single trained interviewer conducted detailed interviews and collected demographic data from a homogeneous group of physicians that saturated with a sample size of 17 pediatric, family medicine, and psychiatric providers who evaluate and treat school-aged children. Qualitative and quantitative data were collected and analyzed.

RESULTS

In general, primary care providers chose to refer children with irritability to mental health specialists when medication management became complex, while the psychiatric providers chose behavior modification and parent education strategies rather than medications. The psychiatric group had a significantly higher caseload mix, prior experience with irritability, and more confidence in their assessment capabilities. There was lack of continuing medical education about irritability in all groups.

CONCLUSION

This preliminary study highlights the importance of collaboration between primary care and subspecialties to promote accurate assessment and subsequent treatment of school-aged children with irritability, who can represent a safety concern for self and others. More research is needed to establish an efficient method of assessing and managing irritability in primary care and better utilization of specialists.

Development and Application of an Innovative Transdiagnostic Treatment Approach for Pediatric Irritability

Recent work has drawn attention to the previously underrecognized role that irritability plays in childhood psychopathology. Despite increased recognition of the clinical importance of pediatric irritability as a transdiagnostic symptom dimension, there is a lack of evidence-based treatments for this population that simultaneously and equitably addresses both child and contextual (e.g., parental) factors implicated in the development and maintenance of associated emotional and behavioral difficulties. In the current pilot study, we adapted the Unified Protocol for Transdiagnostic Treatment of Emotional Disorders in Children (UP-C) for the treatment of pediatric irritability in a sample of 19 children (ages 8 to 12) with primary presenting concerns of irritability and/or disruptive behaviors. Results supported the feasibility and acceptability of this treatment and provided preliminary evidence that such an approach may yield improved outcomes for symptoms of pediatric irritability and disruptive behaviors. Implications of these findings for future research and clinical interventions for pediatric irritability are discussed.

Childhood neurodevelopmental difficulties and risk of adolescent depression: the role of irritability

BACKGROUND

Children with neurodevelopmental disorders are at increased risk of developing depression. Irritability predicts depression in the general population and is common in children with neurodevelopmental disorders. Thus, it is possible that irritability in children with neurodevelopmental disorders contributes to the link with later depression. This study aimed to (a) examine the association between childhood neurodevelopmental difficulties and adolescent depression and (b) test whether irritability explains this association.

METHODS

Children with any neurodevelopmental difficulty at the age of 7-9 (n = 1,697) and a selected, comparison group without any neurodevelopmental difficulty (n = 3,177) were identified from a prospective, UK population-based cohort, the Avon Longitudinal Study of Parents and Children. Neurodevelopmental difficulties were defined as a score in the bottom 5% of the sample on at least one measure of cognitive ability, communication, autism spectrum symptoms, attention-deficit/hyperactivity symptoms, reading or motor coordination. The Development and Well-Being Assessment measured parent-reported child irritability at the age of 7, parent-reported adolescent depression at the age of 10 and 13, and self-reported depression at the age of 15. Depression measures were combined, deriving an outcome of major depressive disorder (MDD) in adolescence. Logistic regression examined the association between childhood neurodevelopmental difficulties and adolescent MDD, controlling for gender. Path analysis estimated the proportion of this association explained by irritability. Analyses were repeated for individual neurodevelopmental problems.

RESULTS

Childhood neurodevelopmental difficulties were associated with adolescent MDD (OR = 2.11, 95% CI = 1.24, 3.60, p = .006). Childhood irritability statistically accounted for 42% of this association. On examining each neurodevelopmental difficulty separately, autistic, communication and ADHD problems were each associated with depression, with irritability explaining 29%-51% of these links.

CONCLUSIONS

Childhood irritability appears to be a key contributor to the link between childhood neurodevelopmental difficulties and adolescent MDD. High rates of irritability in children with autistic and ADHD difficulties may explain elevated rates of depression in the neurodevelopmental group.

A proposed anti-maladaptive aggression agent classification: improving our approach to treating impulsive aggression

Proper drug categorization enables clinicians to readily identify the agents most appropriate for patients in need. Currently, patients with maladaptive aggression do not all always fall into a single existing diagnostic or treatment category. Such is the case for those with impulsive aggression (IA). IA is an associated feature of numerous neuropsychiatric disorders, and can be described as eruptive, aggressive behavior or a 'short fuse'. Although agents from a broad spectrum of drug classes have been used to treat maladaptive aggression, few have been tested distinctly in patients with IA, and there is no drug specifically indicated by the US Food and Drug Administration (US FDA) for IA. Further, current treatments often fail to sufficiently treat IA symptomatology. These issues create an unclear and inadequate treatment path for patients. Here we will propose the establishment of a class of anti-maladaptive aggression agents to begin addressing this clinical issue. The development of such a class would unify the various drugs currently used to treat maladaptive aggression and streamline the treatment approach towards IA. As an important case example of the range of candidate drugs that could fit into a new anti-maladaptive aggression agent category, we will review an investigational IA pharmacotherapy. SPN-810 (extended-release molindone) is currently being investigated as a novel treatment for children with IA and ADHD. Based on these studies we will review how SPN-810 may be well suited for a new, anti-maladaptive aggression drug class and more precisely, a proposed subgroup of IA modulators. The goal of this review is to begin improving the identification of and therapeutic approach for maladaptive aggression as well as IA through more precise anti-maladaptive aggression agent categorization.

Adult outcomes of childhood disruptive disorders in offspring of depressed and healthy parents

BACKGROUND

Longitudinal studies of children with disruptive disorders (DDs) have shown high rates of antisocial personality disorder (ASPD) and substance use in adulthood, but few have examined the contribution of parental disorders. We examine child-/adulthood outcomes of DDs in offspring, whose biological parents did not have a history of ASPD, bipolar disorder, or substance use disorders.

METHOD

Offspring (N = 267) of parents with or without major depression (MDD), but no ASPD or bipolar disorders were followed longitudinally over 33 years, and associations between DDs and psychiatric and functional outcomes were tested.

RESULTS

Eighty-nine (33%) offspring had a DD. Those with, compared to without DDs, had higher rates of MDD (adjusted odds ratio, AOR = 3.42, p < 0.0001), bipolar disorder (AOR = 3.10, p = 0.03), and substance use disorders (AOR = 5.69, p < 0.0001) by age 18, as well as poorer school performance and global functioning. DDs continued to predict MDD and substance use outcomes in adulthood, even after accounting for presence of the corresponding disorder in childhood (MDD: hazards ratio, HR = 3.25, p < 0.0001; SUD, HR = 2.52, p < 0.0001). Associations were similar among the offspring of parents with and without major depression. DDs did not predict adulthood ASPD in either group.

LIMITATIONS

Associations are largely accounted for by conduct disorder (CD), as there were few offspring with ADHD, and oppositional defiant disorder (ODD) was not diagnosed at the time this study began.

CONCLUSION

If there is no familial risk for ASPD, bipolar disorder or substance use, childhood DDs do not lead to ASPD in adulthood; however, the children still have poorer prognosis into midlife. Early treatment of children with DD, particularly CD, while carefully considering familial risk for these disorders, may help mitigate later adversity.

The Neurodevelopmental Basis of Early Childhood Disruptive Behavior: Irritable and Callous Phenotypes as Exemplars

The arrival of the Journal's 175th anniversary occurs at a time of recent advances in research, providing an ideal opportunity to present a neurodevelopmental roadmap for understanding, preventing, and treating psychiatric disorders. Such a roadmap is particularly relevant for early-childhood-onset neurodevelopmental conditions, which emerge when experience-dependent neuroplasticity is at its peak. Employing a novel developmental specification approach, this review places recent neurodevelopmental research on early childhood disruptive behavior within the historical context of the Journal. The authors highlight irritability and callous behavior as two core exemplars of early disruptive behavior. Both phenotypes can be reliably differentiated from normative variation as early as the first years of life. Both link to discrete pathophysiology: irritability with disruptions in prefrontal regulation of emotion, and callous behavior with abnormal fear processing. Each phenotype also possesses clinical and predictive utility. Based on a nomologic net of evidence, the authors conclude that early disruptive behavior is neurodevelopmental in nature and should be reclassified as an early-childhood-onset neurodevelopmental condition in DSM-5. Rapid translation from neurodevelopmental discovery to clinical application has transformative potential for psychiatric approaches of the millennium. [AJP at 175: Remembering Our Past As We Envision Our Future November 1938: Electroencephalographic Analyses of Behavior Problem Children Herbert Jasper and colleagues found that brain abnormalities revealed by EEG are a potential causal factor in childhood behavioral disorders. (Am J Psychiatry 1938; 95:641-658 )].

Mapping the Frequency and Severity of Depressive Behaviors in Preschool-Aged Children

Depressive emotions and behaviors, such as sadness, irritability, and sleep difficulties, are often early-emerging, impairing, and persistent. However, these behaviors are normative in early development, so it is critical to identify the spectrum of behaviors that may be relevant to the development of depression. This study characterizes the frequency and severity of depressive behaviors and impairment in preschool-aged children using a novel daily diary method with 291 parents. A coherent depression dimension was identified, and the specific frequency at which individual behaviors were identified as severe is reported. Behaviors such as sadness, irritability, and tearfulness/sensitivity were found to be relatively normative, whereas other behaviors (e.g., low interest/pleasure, low self-worth) were less normative. These are the first known data to delineate empirical information about the frequency and severity of behaviors that may be relevant to the development of depression; such data provide quantitative information for child practitioners to make distinctions between developmentally typical and problematic behavior, which is essential for improving assessment and minimizing impairing developmental trajectories.

Disruptive Mood Dysregulation Disorder (DMDD): An RDoC perspective

In recent years, there has been much debate regarding the most appropriate diagnostic classification of children exhibiting emotion dysregulation in the form of irritability and severe temper outbursts. Most recently, this has resulted in the addition of a new diagnosis, Disruptive Mood Dysregulation Disorder (DMDD) in the DSM 5. The impetus for including this new disorder was to reduce the number of diagnoses that these children would typically receive; however, there is concern that it has only complicated matters rather than simplifying them. For example, a recent epidemiologic study shows that DMDD cannot be differentiated from oppositional defiant disorder (ODD) based on symptoms alone. Thus, these children are an ideal population in which to apply RDoC constructs in order to obtain greater clarity in terms of underlying processes and ultimately, inform nosology and appropriate interventions. The aim of this article is to provide a foundation for future research by examining extant theoretical and empirical evidence for the role of four key RDoC constructs in DMDD.

Irritability in child and adolescent psychopathology: An integrative review for ICD-11

In preparation for the World Health Organization's development of the Eleventh Revision of the International Classification of Diseases and Related Health Problems (ICD-11) chapter on Mental and Behavioral Disorders, this article reviews the literature pertaining to severe irritability in child and adolescent psychopathology. First, research on severe mood dysregulation suggests that youth with irritability and temper outbursts, among other features of hyperactivity and arousal, demonstrate cross-sectional correlates and developmental outcomes that distinguish them from youth with bipolar disorder. Second, other evidence points to an irritable dimension of Oppositional Defiant Disorder symptomatology, which is uniquely associated with concurrent and subsequent internalizing problems. In contrast to the Diagnostic and Statistical Manual of Mental Disorders' (5th ed.) Disruptive Mood Dysregulation Disorder, our review of the literature supports a different solution: a subtype, Oppositional Defiant Disorder with chronic irritability/anger (proposal included in Appendix). This solution is more consistent with the available evidence and is a better fit with global public health considerations such as harm/benefit potential, clinical utility, and cross-cultural applicability. Implications for assessment, treatment, and research are discussed.

[The Severe Chronic Irritability Concept: A clinical dimension to consider in child and adolescent]

INTRODUCTION

For a decade, the concept of irritability has known a renewed interest in infant and child psychopathology. Indeed, longitudinal follow-up studies clearly highlighted their predictive value - in the short, medium and long terms - of a broad field of behavioral disorders and emotion dysregulation. This dimensional and transnosographic approach of irritability, coupled with the latest neuroscience data, points out that irritability could be the equivalent of a psychopathological marker, covering both a neurobiological, cognitive and emotional component. It is a major challenge today to better understand the developmental sequence of severe chronic irritability and its predictive influence on the etiology of mental disorders from childhood to adulthood.

METHOD

We briefly review here the latest current data on this topic.

RESULTS

The important point is that chronic and non-episodic irritability in children, associated with strong emotional sensitivity to negative events and frequent access of anger, could have a predictive value for progression to anxiety disorder or severe mood disorder but not to bipolar disorder as it was believed until now. The risk of developing a bipolar disorder would be more frequently correlated with the notion of transient and episodic irritability in a context of previous family history of bipolar disorder.

CONCLUSION

Further studies are expected to narrow the discriminative validity of this notion of severe irritability and confirm or not its relevance as a major clinical criterion of Severe Mood Disorders in children and adolescents introduced in the last version of DSM (DSM-5).

Effectiveness of Antidepressant Medications for Symptoms of Irritability and Disruptive Behaviors in Children and Adolescents

OBJECTIVES

Chronic irritability is a common presenting symptom in children and youth in both clinical settings (25%) and in the community (6%-8%). Treatment of irritability is relatively understudied. The purpose of this article is to synthesize evidence regarding the efficacy and safety of antidepressant medications for the treatment of irritability and related symptom dimensions in children and youth.

METHODS

Systematic review of the literature was conducted to identify studies (including youth aged 6-18) that assessed the effectiveness of antidepressant medications for the treatment of irritability or related behavioral phenotypes, including aggression or symptoms of. Studies of youth with developmental disabilities or autism spectrum disorders were excluded.

RESULTS

We identified 99 studies (three randomized trials) assessing the effect of antidepressants in improving irritability, aggression, or oppositional symptoms as secondary outcomes. Only two studies specifically measured the outcome of irritability. Eight of the 11 studies reported significant effects on aggression, oppositionality, or irritability with antidepressant exposure, although effect sizes in all, but two of these, studies were less than 0.25. These effects were significantly reduced, but remained significant in seven of these studies after controlling for changes in comorbid depression scores with treatment. The other three studies reported no change, an increase in frequency of self-harm or aggressive behaviors or benefit in only a subsample of youth who tolerated the antidepressants after 1 year of follow-up.

CONCLUSION

Antidepressant medication exposure appears to have a small effect on irritability and related symptoms in youth. Heterogeneity in the study sample and absence of irritability being measured as a primary outcome across studies restrict the validity of the conclusions. Irritability is a debilitating outcome that needs specific attention in medication treatment studies.

Harsh Parenting As a Potential Mediator of the Association Between Intimate Partner Violence and Child Disruptive Behavior in Families With Young Children

Young children living with intimate partner violence (IPV) are often also exposed to harsh parenting. Both forms of violence increase children's risk for clinically significant disruptive behavior, which can place them on a developmental trajectory associated with serious psychological impairment later in life. Although it is hypothesized that IPV behaviors may spillover into harsh parenting, and thereby influence risk for disruptive behavior, relatively little is known about these processes in families with young children. The current study examines the overlap of the quality and frequency of psychological and physical forms of IPV and harsh parenting, and tests whether harsh parenting mediates the relationship between IPV and child disruptive behavior in a diverse cross-sectional sample of 81 children ages 4 to 6 years. Results suggest that mothers reporting a greater occurrence of psychologically aggressive IPV (e.g., yelling, name-calling) more often engage in psychological and physical aggression toward their children (odds ratios [ORs] = 4.6-9.9). Mothers reporting a greater occurrence of IPV in the form of physical assault more often engage in mild to more severe forms of physical punishment with potential harm to the child (ORs = 3.8-5.0). Psychological and physical forms of IPV and harsh parenting all significantly correlated with maternal reports of child disruptive behavior (r = .29-.40). Psychological harsh parenting partially mediated the association between psychological IPV and child disruptive behavior. However, a significant direct effect of psychological IPV on preschool children's disruptive behavior remained. Implications for child welfare policy and practice and intervention, including the need for increased awareness of the negative impact of psychological IPV on young children, are discussed.

Irritability in Pediatric Patients: Normal or Not?

The goal of this article is to describe the concept of irritability in children and youth, which has been revisited in the DSM-5. Traditionally, this behavior has been more commonly associated with mood disorders, which may account for the rising incidence of bipolar disorder diagnosis and overuse of mood-stabilizing medications in pediatric patients. While not predictive of mania, persistent nonepisodic irritability, if undetected, may escalate to violent behavior with potentially serious outcomes. It is therefore important to educate clinicians about how to accurately assess irritability in pediatric patients.

Sociodemographic and Clinical Features of Disruptive Mood Dysregulation Disorder: A Chart Review

OBJECTIVE

Disruptive mood dysregulation disorder (DMDD) is a novel diagnosis listed in Diagnostic and Statistical Manual of Mental Disorders, 5th ed. (DSM-5) to encompass chronic and impairing irritability in youth, and to help its differentiation from bipolar disorders. Because it is a new entity, treatment guidelines, as well as its sociodemographic and clinical features among diverse populations, are still not elucidated. Here, DMDD cases from three centers in Turkey are reported and the implications are discussed.

METHODS

The study was conducted at the Abant Izzet Baysal University Medical Faculty Department of Child and Adolescent Psychiatry (Bolu), and American Hospital and Bengi Semerci Institute (Istanbul) between August 2014 and October 2014. Records of patients were reviewed and features of patients who fulfilled criteria for DMDD were recorded. Data were analyzed with SPS Version 17.0 for Windows. Descriptive analyses, χ(2) test, and Mann-Whitney U test were used for analyses. Diagnostic consensus was determined via Cohen's κ constants. p was set at 0.01.

RESULTS

Thirty-six patients (77.8 % male) fulfilled criteria for DMDD. κ value for consensus between clinicians was 0.68 (p = 0.00). Mean age of patients was 9.0 years (S.D. = 2.5) whereas the mean age of onset for DMDD symptoms was 4.9 years (S.D. = 2.2). Irritability, temper tantrums, verbal rages, and physical aggression toward family members were the most common presenting complaints.

CONCLUSIONS

Diagnostic consensus could not be reached for almost one fourth of cases. Most common reasons for lack of consensus were problems in clarification of moods of patients in between episodes, problems in differentiation of normality and pathology (i.e., symptoms mainly reported in one setting vs. pervasiveness), and inability to fulfill frequency criterion for tantrums.