Objective Familial aspects of pediatric obsessive-compulsive disorder (OCD) including accommodation and treatment have received notable and warranted attention. However, individual perspectives of its repercussions on family functioning, including emotional parental burden, have not been closely examined. The present study details this topic utilizing a large, multi-center sample. Method Participants included 354 youth affected with OCD, mothers and fathers ascertained through pediatric OCD programs in Boston, USA (n=180) and Vancouver, Canada (n=174). The validated OCD Family Functioning (OFF) Scale and standard OCD measures were completed. Descriptive, between-site and cross-perspective comparative analyses were followed by regression model testing to predict family impairment. Results Family functioning was negatively impacted from youth, mother, and father perspectives. Impairment was reportedly more extensive at the time of worst OCD severity and was greater from maternal versus paternal viewpoints. Most frequently impacted family tasks and implicated OCD symptoms included morning and bedtime routines and intrusive thoughts. Emotional repercussions included stress and anxiety, followed by frustration/anger in youth and sadness in parents. Nearly half of mothers and a third of fathers reported daily occupational impairment. Compared to youth self-report, parents perceived fewer social and academic impacts on their child. Family accommodation most consistently predicted family impairment, especially from parent perspectives. OCD and compulsion severity, contamination and religious obsessions, and comorbidities also predicted various perspectives of family subdomain impairment. Conclusion This study quantitatively details the pervasive burden that pediatric OCD places on families, as reported from complementary relative perspectives. Further attention to this topic is warranted in clinical and research realms.

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Background: Obsessive-compulsive disorder (OCD) has complex genetic underpinnings, particularly in its earlyonset 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 preceding 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.

HighlightsLargest controlled pediatric OCD symptom provocation study.Novel standardized symptom provocation picture set for pediatric OCD.Behavioral group differences strongest for ‘Just Right’ factor.Temporal pole recruited by OCD group.