Exploring latent clusters in pediatric OCD based on symptoms, severity, age, gender, and comorbidity

Given diverse symptom expression and high rates of comorbid conditions, the present study explored underlying commonalities among OCD-affected children and adolescents to better conceptualize disorder presentation and associated features. Data from 830 OCD-affected participants presenting to OCD specialty centers was aggregated. Dependent mixture modeling was used to examine latent clusters based on their age- and gender adjusted symptom severity (as measured by the Children's Yale-Brown Obsessive-Compulsive Scale; CY-BOCS), symptom type (as measured by factor scores calculated from the CY-BOCS symptom checklist), and comorbid diagnoses (as assessed via diagnostic interviews). Fit statistics favored a four-cluster model with groups distinguished primarily by symptom expression and comorbidity type. Fit indices for 3-7 cluster models were only marginally different and characteristics of the clusters remained largely stable between solutions with small clusters of distinct presentations added in more complex models. Rather than identifying a single classification system, the findings support the utility of integrating dimensional, developmental, and transdiagnostic information in the conceptualization of OCD-affected children and adolescents. Identified clusters point to the centrality of contamination concerns to OCD, relationships between broader symptom expression and higher levels of comorbidity, and the potential for complex/neurodevelopmental presentations.

FAST CBT for pediatric OCD: A multiple-baseline controlled pilot trial of parent training in exposure and response prevention delivered via telehealth

Objective

The current study utilized a single case series, non-concurrent multiple baseline design to examine the efficacy of training parents via telehealth videoconferencing in exposure and response prevention (ERP) for home delivery of the treatment for their children and adolescents with obsessive compulsive disorder (OCD).

Method

There were nine participants aged 8 to 14  years who had received a primary diagnosis of OCD. The design involved a series of AB replications, whereby following pre-treatment assessments participants were randomly assigned to either a 2-week (n = 4) or 3-week (n = 5) baseline condition with weekly monitoring of their child's OCD symptoms. Following baseline, parents participated four weekly telehealth parent-training modules in delivering FAST (Families Accessing Skills Training) cognitive behavior therapy (CBT) with ERP (CBT-ERP) to children with OCD via videoconferencing with the clinician. Primary outcome measures were OCD symptom severity, diagnostic severity, and global functioning, which were assessed post-treatment and at 2 month follow-up.

Results

The stability of the baseline period from pre-treatment to week 2 (for the 2-week condition) or to week 3 (for the 3-week condition) was established as there were no significant differences across baseline scores for parent target obsessions or parent target compulsions ratings. Significant improvements on the primary outcomes of clinician assessed symptom severity, diagnostic ratings, and global functioning were observed from baseline to post-treatment, and continued to 2 months follow-up.

Conclusion

These data suggest that brief, parent training in FAST CBT-ERP via telehealth provides an overall effective intervention that is likely to be of most benefit to children and youth who are mild to moderate in severity.

Comorbidities in Obsessive-Compulsive Disorder Across the Lifespan: A Systematic Review and Meta-Analysis

Comorbidities are seen with obsessive-compulsive disorder (OCD) across the lifespan. Neurodevelopmental comorbidities are common in young children, followed by mood, anxiety, and obsessive-compulsive related disorders (OCRDs) in children, adolescents and adults, and neurological and degenerative disorders in the elderly. Understanding comorbidity prevalence and patterns has clinical and research implications. We conducted a systematic review and meta-analysis on comorbidities in OCD across the lifespan, with the objective to, first, estimate age-wise pattern and prevalence of comorbidities with OCD and, second, to examine associations of demographic (age at assessment, gender distribution) and clinical characteristics (age of onset, illness severity) with comorbidities. Four electronic databases (PubMed, EMBASE, SCOPUS, and PsycINFO) were searched using predefined search terms for articles published between 1979 and 2020. Eligible studies, across age, reported original findings on comorbidities and had an OCD sample size of ≥100. We excluded studies that did not use standardised diagnostic assessments, or that excluded patients on the basis of comorbidity. We adhered to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. The review protocol has been registered on the International Prospective Register of Systematic Reviews. A comorbidity rate of 69% was found in a pooled sample of more than 15,000 individuals. Mood disorders (major depressive disorder), anxiety disorders (generalised anxiety disorder), neurodevelopmental disorders (NDDs) and OCRDs were the commonest comorbidities. Anxiety disorders prevailed in children, mood disorders in adults, whereas NDDs were similarly prevalent. Higher comorbidity with any psychiatric illness, NDDs, and severe mental disorders was seen in males, vs. females. Illness severity was inversely associated with rates for panic disorder, tic disorders, OCRDs, obsessive compulsive personality disorder, and anorexia nervosa. This systematic review and meta-analysis provides base rates for comorbidities in OCD across the lifespan. This has implications for comprehensive clinical evaluation and management planning. The high variability in comorbidity rates suggests the need for quality, multi-centric, large studies, using prospective designs. Systematic Review Registration: Unique Identifier: CRD42020215904.

Prevalence, severity, and clinical correlates of food neophobia in Salvadorian youth

Food neophobia (FN) describes problematic fear-based avoidance/restriction of novel foods. Using the novel parent-reported Measure of Food Neophobia (MFN), the authors examined FN symptoms and impairment in 305 Salvadorian children and explored clinical correlates. Factor analysis supported the MFN's designed structure to inquire about FN symptoms and FN impairment. At least one FN symptom was observed in 91% of the sample; however, only 9% were rated as having moderate or greater impairment. Demographic variables were not associated with FN; however, FN was positively correlated with internalizing, externalizing, inattention, health anxiety, and obsessive-compulsive symptoms. Inattention symptoms and health anxiety emerged as significant predictors of FN symptoms, while FN symptoms were the only significant predictor of FN impairment. The present study supports the MFN and provides information about FN in a general population, including the prevalence of clinically significant symptoms and association with psychological domains. Continued investigation of FN is still needed.

Race and ethnicity in pediatric OCD: An exploratory study of a clinical North American sample

BACKGROUND

Influences of race and ethnicity have received limited attention in pediatric obsessive-compulsive disorder (OCD), despite noted importance in other psychiatric diseases. We sought to compare racially defined groups presenting to a North American tertiary care pediatric OCD subspecialty clinic.

METHODS

Clinician-rated and parent/child-reported information was extracted from a research data registry comprising OCD-affected youth assessed between 2011 and 2018. The study population was aggregated into racial groups, defined as Caucasian, Asian, and "other." Country of origin and spoken language were used as ethnicity proxies. Obsessivecompulsive disorder phenotype, clinical course, and family environment were compared, with inclusion of mixed Asian-Caucasians in post-hoc analyses.

RESULTS

Asian youth reported significantly later ages of OCD symptom onset, clinical diagnosis, and treatment compared with Caucasian youth and were significantly less likely to have participated in OCD-specific treatment, despite similar clinician recommendation rates. Obsessivecompulsive disorder severity and comorbidities did not differ across groups. Asian parents reported significantly higher levels of family blame and conflict than Caucasian parents, but similar prevalence of OCD family history.

CONCLUSIONS

Clinically relevant differences were identified between Asians and Caucasians, highlighting the need for individualized care that respects the influences of ethnicity and race in pediatric OCD. Replication and future study of additional racial groups is warranted.

Effects of Treatment Setting on Outcomes of Flexibly-Dosed Intensive Cognitive Behavioral Therapy for Pediatric OCD: A Randomized Controlled Pilot Trial

Introduction: Optimizing individual outcomes of cognitive-behavioral therapy (CBT) remains a priority. Methods: Youth were randomized to receive intensive CBT at a hospital clinic (n = 14) or within their home (n = 12). Youth completed 3 × 3 h sessions (Phase I) and up to four additional 3-h sessions as desired/needed (Phase II). An independent evaluator assessed youth after Phase I, Phase II (when applicable), and at 1- and 6-months post-treatment. A range of OCD-related (e.g., severity, impairment) and secondary (e.g., quality of life, comorbid symptoms) outcomes were assessed. Results: Families' satisfaction with the treatment program was high. Of study completers (n = 22), five youth (23%) utilized no Phase II sessions and 9 (41%) utilized all four (Median Phase II sessions: 2.5). Large improvements in OCD-related outcomes and small-to-moderate benefits across secondary domains were observed. Statistically-significant differences in primary outcomes were not observed between settings; however, minor benefits for home-based treatment were observed (e.g., maintenance of gains, youth comfort with treatment). Discussion: Intensive CBT is an efficacious treatment for pediatric OCD. Families opted for differing doses based on their needs. Home-based treatment, while not substantially superior to hospital care, may offer some value, particularly when desired/relevant. Clinical Trial Registration: www.ClinicalTrials.gov; https://clinicaltrials.gov/ct2/show/NCT03672565, identifier: NCT03672565.

Neurocognitive risk markers in pediatric obsessive-compulsive disorder

BACKGROUND

Obsessive-compulsive disorder (OCD) has complex genetic underpinnings, particularly in its early-onset form, which places siblings at a 10-fold increased risk of developing the disorder. Examination for neurocognitive markers preceding pediatric OCD onset has not been conducted, although markers have been identified in adult OCD. This study compared neurocognition across groups of OCD-affected youth (n = 87), unaffected siblings of those with early-onset OCD (n = 67), and healthy controls (HC; n = 79).

METHODS

A total of 233 participants aged 6-18 years old completed standardized neurocognitive tests of cognitive flexibility, decision making, planning, response inhibition, spatial working memory, attention, recognition nonverbal memory, and intelligence. They were administered the Anxiety Disorders Interview Schedule-Parent version (ADIS-P) and completed self-report anxiety and OCD questionnaires. Linear mixed-effects models tested for differences between groups, adjusting for age, gender, IQ, state anxiety, and ethnicity, and accounting for random effects of family membership.

RESULTS

OCD-affected youth and unaffected siblings performed significantly worse on planning in comparison to HCs (Cohen's d = 0.74; 95% CI = [0.11, 1.36]; Cohen's d = 0.75; 95% CI = [0.12, 1.38], respectively; omnibus group effect p = .007). No other significant between-group differences were identified.

CONCLUSIONS

Neurocognitive performance differences between groups identified planning as a preexisting trait marker of pediatric OCD, while no other domain presented as a marker of pediatric OCD. This differs from adult OCD, which is associated with broader cognitive impairments. Investigating longitudinal trajectories and predictive significance of neurocognition in those affected by, and at risk for, early-onset OCD is warranted. Ideally, this will enhance individualized risk stratification and inform future prevention and early intervention strategies.

Avoidance, Insight, Impairment Recognition Concordance, and Cognitive-Behavioral Therapy Outcomes in Pediatric Obsessive-Compulsive Disorder

OBJECTIVE

Insight and avoidance are commonly discussed factors in obsessive-compulsive disorder (OCD) that have demonstrated associations with increased severity as well as reduced treatment response in adults, but these factors have not been sufficiently examined in pediatric OCD. This study examined the impacts of avoidance, insight, and impairment recognition concordance on cognitive-behavioral therapy (CBT) outcomes as well as impacts of CBT on insight and avoidance in a large sample of youths affected by OCD.

METHOD

Data from 573 OCD-affected youths enrolled in CBT trials were aggregated. Children's Yale-Brown Obsessive-Compulsive Scale items measured treatment response, insight, and avoidance. Standardized differences between child and parent ratings of impairment were used to calculate impairment recognition concordance. Binary logistic regression was used to identify variables associated with treatment response.

RESULTS

Greater avoidance, limited child recognition of impairment, older age, and lower baseline severity predicted reduced likelihood of treatment response, but insight did not. Both insight and avoidance improved significantly following CBT. Response rates were lower when posttreatment insight and avoidance were worse.

CONCLUSION

Contrasting with prevailing belief, poor insight does not appear to limit CBT response potential in pediatric OCD. Avoidance and impairment recognition are understudied CBT response predictors and warrant further consideration in pediatric OCD. Clinicians should attend to these factors to optimize outcomes for children affected by this common, debilitating illness.

A Pilot Study of Family-Based Exposure-Focused Treatment for Youth with Autism Spectrum Disorder and Anxiety

Anxiety is a common and impairing condition in youth with autism spectrum disorders (ASD). Evidence supports the use of cognitive behavioral therapy for treating anxiety in this population; however, available treatment protocols may be difficult to implement outside of research settings. The present study examined the efficacy of family-based exposure-focused treatment (FET) compared to a treatment as usual (TAU) control in 32 youth aged 6-17 years with ASD and co-occurring anxiety. Fourteen youth were randomized to FET, which included 12 face-to-face weekly therapy sessions lasing 45-55 min, while 18 youth completed the TAU control where engagement in psychotherapy or pharmacotherapy was at the discretion of the families. Results strongly supported FET with a 79% (versus 0% in TAU) response rate, 86% (versus 0% in TAU) remission in primary anxiety diagnosis, and large between-group effects on clinician-rated anxiety severity and most parent-rated domains of anxiety-related impairment. Among treatment responders, 2-month follow-up supported maintenance of gains. Overall, the study supported FET as a relatively brief intervention for the treatment of anxiety in youth with ASD, although further research is needed to replicate these findings and compare FET outcomes to more comprehensive interventions.

Cognitive-behavioral therapy booster treatment in pediatric obsessive-compulsive disorder: A utilization assessment pilot study

BACKGROUND

Cognitive-behavioral therapy (CBT) for pediatric obsessivecompulsive disorder (OCD) is effective, although many individuals report they need continued support after completing treatment.

METHODS

Six monthly drop-in booster sessions were offered to 94 youth with OCD and their parents who previously had completed a 12-week group family-based CBT program (GF-CBT). This report describes program utilization rates and participant satisfaction levels.

RESULTS

Twenty-three percent (n = 22) of invited youths with OCD attended ≥1 booster session; 63% of attendees participated in >1 session. The mean number of attended sessions was 2.84 (standard deviation = 1.74). No significant group differences between booster attendees and non-attendees were found in terms of age, sex, ethnicity, parental education, or symptom severity at baseline or end of GF-CBT. Booster session attendees were more likely to have comorbidities than non-attendees (82% vs 58%; P = .045). Most participants were recent treatment completers (59%). Based on participant feedback, booster sessions were valuable, with perceived benefits related to peer interaction and support, skills review, and homework development.

CONCLUSIONS

Cognitive-behavioral therapy booster sessions for pediatric OCD seem to be an acceptable approach that a significant percentage of recent treatment completers would utilize. Further research is needed to examine program efficacy and to draw conclusions about key program features.

Academic skills in pediatric obsessive-compulsive disorder: A preliminary study

BACKGROUND

Obsessive-compulsive disorder (OCD) is a prevalent and debilitating illness that often begins in childhood and has a significant impact on the functioning of youth and their families. Given that schooling represents a considerable portion of youth's lives and is a key contributor to their development, identifying impacts of OCD on school performance is important.

METHODS

The present study evaluated academic skill differences in OCD-affected youth age 7 to 18 (n = 25) compared with matched healthy controls (HCs; n = 25), as captured via standardized testing. Analysis of variance was used to examine group effects on the outcome variables.

RESULTS

In comparison with HCs, OCD-affected youth presented with significantly poorer performance in math calculation (P = .029), although mean scores fell in the normative range. Thirty-six percent of the OCD group were in the Below Average range, compared with 12% of the HCs (P = .047). There were no significant between-group differences in word reading or spelling. Academic skills were not associated with symptom severity.

CONCLUSIONS

Findings suggest that underperformance in math may be present in a higher-than-expected proportion of OCD-affected youth. Further studies of academic skills are warranted to replicate the current findings and to examine roles of academic enhancers in this vulnerable population.

Children's and Parents' Ability to Tolerate Child Distress: Impact on Cognitive Behavioral Therapy for Pediatric Obsessive Compulsive Disorder

The present study explored the concept of tolerance for child distress in 46 children (ages 5-8), along with their mothers and fathers, who received family-based CBT for OCD. The study sought to describe baseline tolerance, changes in tolerance with treatment, and the predictive impact of tolerance on symptom improvement. Tolerance was rated by clinicians on a single item and the CY-BOCS was used to measure OCD severity. Descriptive results suggested that all participants had some difficulty tolerating the child's distress at baseline while paired t tests indicated large improvements were made over treatment (d = 1.2-2.0). Fathers' initial tolerance was significantly related to symptom improvement in a multivariate regression as were fathers' and children's changes in distress tolerance over the course of treatment. Overall, results provide support for examining tolerance of child distress including its predictive impact and potential as a supplemental intervention target.

Group family-based cognitive behavioral therapy for pediatric obsessive compulsive disorder: Global outcomes and predictors of improvement

This open, uncontrolled study examined the efficacy of a group family-based cognitive behavioral therapy (GF-CBT) protocol in treating pediatric obsessive-compulsive disorder (OCD) and explored predictors of symptom improvement. Eighty-five OCD-affected youth aged 8-18 years (M = 13.9 years, SD = 2.49; 46% male) and their parent(s) participated in a weekly, 12-session GF-CBT program. Data from multiple perspectives were gathered at the beginning and end of treatment, as well as at one-month follow-up. A broad range of assessment measures were utilized to capture clinically-relevant domains and a number of potential predictor variables were explored. Paired t-tests indicated that treatment was associated with significant reductions in clinician- and parent-rated OCD severity (d = 1.47, 1.32), youth and parent-rated functional impairment (d = 0.87, 0.67), coercive/disruptive behaviors (d = 0.75), and family accommodation (d = 1.02), as well as improvements in youth-, mother-, and father-rated family functioning (d = 1.05, 0.50, 0.88). Paired t-tests also indicated that youth remained improved at one-month follow-up. Step-wise regression identified greater homework success as a significant predictor of symptom improvement. This study provides evidence that GF-CBT significantly improves a wide range of domains for youth/families that extends beyond OCD symptom severity and supports homework as a core treatment component.

Secondary outcomes from the pediatric obsessive compulsive disorder treatment study II

The Pediatric Obsessive-Compulsive Disorder Treatment Study II (POTS II) investigated the benefit of serotonin reuptake inhibitor (SRI) augmentation with cognitive behavioral therapy (CBT). Primary outcomes focused on OCD symptom change and indicated benefit associated with a full course of CBT. Given that the majority of youth with OCD suffer from significant comorbid symptoms and impaired quality of life, the current study examined POTS II data for effects on secondary outcomes. Participants were 124 youth ages 7-17 years with a primary diagnosis of OCD who were partial responders to an adequate SRI trial. Participants were randomized to medication management, medication management plus instructions in cognitive behavioral therapy (CBT), or medication management plus full CBT. Acute effects on non-OCD anxiety, depression, inattention, hyperactivity, and quality of life were examined across treatment conditions. Improvement across treatment was observed for non-OCD anxiety, inattention, hyperactivity, and quality of life. Changes were generally significantly greater in the group receiving full CBT. Child-rated depression was not found to change. OCD-focused treatment lead to improvement in other areas of psychopathology and functioning. For youth who are partial responders to SRI monotherapy, augmentation with full CBT may yield the greatest benefit on these secondary outcomes.

CLINICAL TRIALS REGISTRATION

Treatment of Pediatric OCD for SRI Partial Responders, Clinicaltrials.gov Identifier: NCT00074815, http://clinicaltrials.gov/show/NCT00074815.

Examination of the Phenomenology and Clinical Correlates of Emetophobia in a Sample of Salvadorian Youths

Emetophobia is an under-researched disorder characterized by a specific fear of vomiting. There is a paucity of research on this impairing condition, with extant examinations being largely limited to adult samples and online communities. The present study examined the incidence, phenomenology, and correlates of emetophobia in 305 Salvadorian youths. Caregivers completed a battery of questionnaires regarding the youth's symptoms of emetophobia, internalizing/externalizing symptoms, health anxiety, and obsessive-compulsive symptoms. Approximately 7.5 % of the sample was elevated on emetophobia symptoms, and higher levels of emetophobia symptoms were correlated with higher levels of internalizing, externalizing, health anxiety, and obsessive-compulsive symptoms, and lower levels of adaptive functioning. Youths meeting the cutoff for elevated emetophobia symptoms versus those who did not demonstrated significantly higher levels of externalizing behaviors, as well as general obsessive-compulsive symptoms, especially doubting/checking and neutralizing behaviors. These findings are hoped to help improve the conceptualization and treatment of this poorly understood disorder.

The Treatment Worries Questionnaire: Conjoined measures for evaluating worries about psychosocial treatment in youth and their parents

Treatment worries, which surround requirements and results of obtaining treatment, may represent an important construct; however, previous measures were limited by their specificity, format, and lack of parent report. Therefore the present study examined the initial outcomes and psychometrics of corresponding measures of treatment worries in youth (Treatment Worries Questionnaire - Child; TWQ-C) and their parents (Treatment Worries Questionnaire - Parent; TWQ-P). Participants were 94 youth (7-17-years old) and parent dyads presenting for treatment of an anxiety disorder. Dyads completed the TWQ-C and TWQ-P along with additional measures prior to initiating treatment. Treatment worries were endorsed in the mild-moderate range by youth and the TWQ-C demonstrated good-excellent internal consistency, a three-factor structure, and consistent convergent and divergent relationships. Treatment worries were endorsed in the low-mild range by parents and the TWQ-P demonstrated fair-good internal consistency, a four-factor structure, and consistent divergent relationships, but variable (by factor) convergent relationships. The results provide information on treatment worries and support the use of the TWQ-C and TWQ-P as broad assessments of the concept. Low endorsement of worries among parents likely relates to the treatment-seeking nature of the sample. Future investigations using the TWQ-C and TWQ-P in a variety of samples is warranted.

Treatment Concerns and Functional Impairment in Pediatric Anxiety

Although there are efficacious, evidence-based treatments for anxiety disorders, youth often experience delays in seeking therapy. Myriad reasons may contribute to this lag in treatment initiation, with some youth possessing concerns about therapy. Treatment concerns are broadly characterized by worries/ambivalence about seeking treatment, including concerns about the negative reactions, consequences, and inconvenience of treatment. As no studies exist for youth with anxiety disorders, this study examined the phenomenology of treatment concerns in 119 treatment-seeking, anxious youth and utilized a structural equation model to examine the relationship between child anxiety, depressive symptoms, treatment concerns, and anxiety-related functional impairment. Over 90 % of the children positively endorsed some type of treatment-related fear, with the most frequently expressed concern being that therapy would take too much time (50.4 %). Based on the model, both child anxiety and depressive symptoms predicted functional impairment, and treatment concerns mediated the relationship between child anxiety and functional impairment.

A systematic review and meta-analysis of psychiatric treatments for excoriation (skin-picking) disorder

OBJECTIVE

While individual trials suggest benefit of interventions for excoriation (skin-picking) disorder (ExD), limited systematic evaluation of treatments, or their collective benefit, exists.

METHODS

The present study examined the current state of treatments for ExD in a systematic review and meta-analysis and explored potential treatment moderators. Twelve trials were identified for review, including five with a control condition. Of these, nine were eligible to be included in the meta-analysis (three with a control).

RESULTS

A fixed-effects meta-analysis found a large overall treatment effect size (g=1.13), comprised of large effects for behavioral treatments (g=1.19), lamotrigine (g=0.98) and selective serotonin reuptake inhibitors (g=1.09). Clinician-rated measures did not significantly differ from self-rated measures; however, larger effects were observed on self-rated measures of severity, as compared to impairment [Q(1)=4.63, P=.03]. Treatment type, trial length and trial methodological quality were not significant moderators. For controlled trials, the comparative efficacy of treatments for ExD was in the moderate range (g=0.47).

CONCLUSION

Findings suggest that treatment for ExD has benefit; however, the meta-analysis did not provide strong evidence to support any specific treatment or to suggest its unique clinical benefit over control conditions. Overall, there is a lack of study on treatments for ExD and additional randomized controlled trials with inclusion of multiple informants in assessment is needed.

A pilot trial of cognitive-behavioral therapy augmentation of antibiotic treatment in youth with pediatric acute-onset neuropsychiatric syndrome-related obsessive-compulsive disorder

BACKGROUND

This study reports an open trial of family-based cognitive-behavioral therapy (CBT) in children and adolescents with obsessive-compulsive disorder (OCD) exhibiting an onset pattern consistent with pediatric acute-onset neuropsychiatric syndrome (PANS).

METHODS

Eleven primarily Caucasian youth with PANS-related OCD (range=4-14 years; 6 boys) who were incomplete responders to antibiotic treatment, received family-based CBT delivered either face-to-face or via web camera.

RESULTS

All participants completing treatment (8 of 8) were considered improved at posttreatment, and average obsessive-compulsive symptom severity was reduced by 49%. Significant reductions in obsessive-compulsive symptom severity and in clinician- and parent-rated OCD-related impairment were noted. Reductions in parent- and child-rated anxiety, child-rated OCD-related impairment, and comorbid neuropsychiatric symptoms were not statistically significant.

CONCLUSIONS

Gains were maintained at follow-up, with 100% (6 of 6) of those assessed remaining improved. Implications for treatment and further research are discussed.

Variations in symptom prevalence and clinical correlates in younger versus older youth with obsessive-compulsive disorder

Few studies have examined the phenomenology of obsessive-compulsive disorder (OCD) in younger children. A sample of 292 treatment seeking youth with a primary diagnosis of OCD was divided into the young child (3-9 years old) and older child (10-18 years old) groups. Overall OCD severity did not differ between groups. However, older youth demonstrated stronger intensity of obsessive and compulsive symptoms, while younger children were rated as having less resistance and control of compulsions. Older youth exhibited increased occurrence of comorbid depression, and an increased occurrence of sexual, magical thinking, and somatic obsessions, as well as, checking, counting and magical thinking compulsions. Conversely, the group of younger children exhibited significantly poorer insight, increased incidence of hoarding compulsions, higher rates of comorbid attention deficit/hyperactivity disorder, disruptive behavior, and parent-rated anxiety, and more frequently exhibited hoarding compulsions. These differences suggest domains to consider when screening for OCD among younger/older pediatric cohorts.

Treating trichotillomania: a meta-analysis of treatment effects and moderators for behavior therapy and serotonin reuptake inhibitors

Few randomized controlled trials (RCTs) exist examining the efficacy of behavior therapy (BT) or serotonin reuptake inhibitors (SRIs) for the treatment of trichotillomania (TTM), with no examination of treatment moderators. The present meta-analysis synthesized the treatment effect sizes (ES) of BT and SRI relative to comparison conditions, and examined moderators of treatment. A comprehensive literature search identified 11 RCTs that met inclusion criteria. Clinical characteristics (e.g., age, comorbidity, therapeutic contact hours), outcome measures, treatment subtypes (e.g., SRI subtype, BT subtype), and ES data were extracted. The standardized mean difference of change in hair pulling severity was the outcome measure. A random effects meta-analysis found a large pooled ES for BT (ES = 1.41, p < 0.001). BT trials with greater therapeutic contact hours exhibited larger ES (p = 0.009). Additionally, BT trials that used mood enhanced therapeutic techniques exhibited greater ES relative to trials including only traditional BT components (p = 0.004). For SRI trials, a random effects meta-analysis identified a moderate pooled ES (ES = 0.41, p = 0.02). Although clomipramine exhibited larger ES relative to selective serotonin reuptake inhibitors, the difference was not statistically significant. Publication bias was not identified for either treatment. BT yields large treatment effects for TTM, with further examination needed to disentangle confounded treatment moderators. SRI trials exhibited a moderate pooled ES, with no treatment moderators identified. Sensitivity analyses highlighted the need for further RCTs of SRIs, especially among youth with TTM.

Cognitive-behavioral therapy for anxiety in youth with an autism spectrum disorder: A follow-up study

Cognitive-behavioral therapy for anxiety in youth with an autism spectrum disorder appears efficacious; however, maintenance of treatment gains has not yet been studied. Using a sample of 32 youth who had benefited at least minimally from a past trial of cognitive-behavioral therapy for anxiety in autism spectrum disorder, this study assessed anxiety symptoms in youth 10–26 months following treatment completion. Compared to baseline, follow-up scores were associated with large effects for treatment. Relative to post-treatment, a small effect for return in symptoms was present and significantly fewer individuals were rated as responders at follow-up. Future studies should investigate factors associated with poor treatment maintenance and modifications or additions to treatment that may help maintain treatment gains.

A Cognitive-Behavioral Approach for Anxiety in a Preschool-Aged Child With Autism Spectrum Disorder

Empirical support exists for behaviorally oriented psychosocial interventions to reduce functional impairment related to autism spectrum disorder (ASD) symptoms in young children, but little research exists examining the effectiveness of such treatments when applied to preschool-aged children with comorbid anxiety symptoms. With this in mind, the authors report on the case of “Marcus,” a 4-year-old boy with autistic disorder and impairing comorbid anxiety. Marcus participated in 8 weekly sessions of family-based cognitive-behavioral therapy, addressing his fear-based avoidance of social interactions and sensory stimuli, using an anxiety treatment protocol for youth with ASD modified to account for his young age. This protocol consisted of modular components addressing affective education, exposure, cognitive restructuring, and social coaching. At post-treatment assessment, Marcus exhibited markedly decreased impairment, as evidenced by parent responses to clinical interview and rating scales. In addition, Marcus displayed improvement in severity of anxiety symptoms as illustrated by a decrease in his scores on the Pediatric Anxiety Rating Scale from 17 at baseline to 8 at post-treatment. Therapeutic gains were maintained at 4-month follow-up. Implications and clinical considerations are discussed.

The effect of cognitive-behavioral therapy versus treatment as usual for anxiety in children with autism spectrum disorders: a randomized, controlled trial

OBJECTIVE

To examine the efficacy of a modular cognitive-behavioral therapy (CBT) protocol relative to treatment as usual (TAU) among children with high-functioning autism spectrum disorders (ASD) and clinically significant anxiety.

METHOD

A total of 45 children (7-11 years of age) with high-functioning ASD and clinically significant anxiety were randomized to receive 16 sessions of weekly CBT or TAU for an equivalent duration. After screening, assessments were conducted at baseline, post-treatment, and 3-month follow-up. Raters were blind to treatment condition.

RESULTS

Youth receiving CBT showed substantial improvement relative to TAU on primary anxiety outcomes. Of 24 children randomized to the CBT arm, 18 (75%) were treatment responders, versus only 3 of 21 children (14%) in the TAU arm. Gains were generally maintained at 3-month follow-up for CBT responders.

CONCLUSIONS

Relative to usual care, CBT adapted for anxious youth with high-functioning ASD demonstrates large effects in reducing anxiety symptoms. This study contributes to the growing literature supporting adapted CBT approaches for treating anxiety in youth with ASD.