title: Clinical Correlates of Co-occurring Psychiatric and Autism Spectrum Disorder (ASD) Symptom-Induced Impairment in Children with ASD.
abstract: Although psychiatric symptom severity and impairment are overlapping but nevertheless distinct illness parameters, little research has examined whether variables found to be associated with the severity are also correlated with symptom-induced impairment. Parents and teachers completed ratings of symptom-induced impairment for DSM-IV-referenced syndromes, and parents completed a background questionnaire for a consecutively referred sample of primarily male (81%) 6-to-12 year olds with autism spectrum disorder (ASD) (N = 221). Some clinical correlates (e.g., IQ < 70, maternal level of education, pregnancy complications, current use of psychotropic medication, season of birth) were associated with impairment for several disorders, whereas others were correlated with only a few syndromes (e.g., gender, co-morbid medical conditions) or were not related to impairment in any disorder (e.g., family psychopathology). There was little convergence in findings for parents' versus teachers' ratings. Some clinical correlates (e.g., season of birth, current psychotropic medication, maternal education) were unique predictors of three or more disorders. Pregnancy complications were uniquely associated with social anxiety and schizoid personality symptom-induced impairment. IQ was a unique predictor of schizophrenia, ASD, oppositional defiant disorder symptom-induced impairment. Children whose mothers had relatively fewer years of education had greater odds for symptom-induced impairment in social anxiety, depression, aggression, and mania and greater number of impairing conditions. Season of birth was the most robust correlate of symptom-induced impairment as rated by teachers but not by parents. Children born in fall evidenced higher rates of co-occurring psychiatric and ASD symptom-induced impairment and total number of impairing conditions. Many variables previously linked with symptom severity are also correlated with impairment.
authors: Department of Psychiatry, Health Sciences Center T-10, Stony Brook, NY, 11794-8101, USA. kenneth.gadow@stonybrook.edu.
authors: Kenneth D
authors: KD
authors: Gadow
authors: Department of Psychiatry, Stony Brook University, Stony Brook, NY, 11794-8790, USA. gperlman@gmail.com.
authors: Greg
authors: G
authors: Perlman
authors: Department of Psychiatry, Stony Brook University, Stony Brook, NY, 11794-8790, USA. lianne.ramdhany@gmail.com.
authors: Lianne
authors: L
authors: Ramdhany
authors: Developmental and Educational Psychology, Leiden University, Leiden, The Netherlands. jannekeaderuiter@gmail.com.
authors: Janneke
authors: J
authors: de Ruiter
mesh_terms: D000293:Adolescent; D000067877:Autism Spectrum Disorder / Q000453:epidemiology / Q000209:etiology*; D002648:Child; D015897:Comorbidity; D005260:Female; D006801:Humans; D008297:Male; D065886:Neurodevelopmental Disorders / Q000453:epidemiology / Q000209:etiology*; D009518:New York / Q000453:epidemiology; D012307:Risk Factors
keywords: Autism spectrum disorders; Family psychopathology; Impairment; Pregnancy complications; Psychiatric disorder; Season of birth
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