Background: Although approximately 23% of anorexia nervosa (AN) patients have concomitant autism spectrum disorder (ASD), it is clinically difficult to determine ASD coexistence in patients with eating disorders. Restrictive AN is more common in younger patients, and self-induced vomiting usually appears during adolescence/young adulthood with the collapse of control. Some patients state that they “would never want to vomit” and are tolerant of weight gain even if they start overeating. We aimed to understand the essential difference between who vomit and who do not vomit and believed that this difference might be related to the ASD tendency. In this study, we hypothesised that the absence of self-induced vomiting may be associated with the presence of ASD and aimed to assess the presence of autism spectrum disorder tendencies in each eating disorder. Clarifying this association helps to consider the coexistence of ASD in the clinical setting and can lead to the next detailed ASD evaluation, and as a result, helps to determine the appropriate treatment and support individually.
Methods: We retrospectively evaluated 43 females aged 15–45 years who attended Chiba University Hospital between 2012 and 2016 using the Eating Disorder Examination Questionnaire and Autism Spectrum Quotient to quantify the severity of the eating disorder and to identify whether ASD tendency were present.
Results: There was no difference in the AQ between AN-BP and AN-R. The significant difference in the AQ score between BN and BED was clear. Of the four ED subtypes, BED had the highest ASD tendency. In the four groups, AN-BP had the longest duration of illness and was significantly longer than AN-R.
Conclusions: There was a difference in the AQ score by the presence or absence of self-induced vomiting. The present results help us understand why only those with binge eating disorder (BED) do not vomit even if they gain weight and why BED is admissive even if there is weight gain. Further Therefore, evaluating patients for the presence of self-induced vomiting when assessing them for EDs may help us understand the association with ASD tendencies.
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Background: Although approximately 23% of anorexia nervosa (AN) patients have concomitant autism spectrum disorder (ASD), it is clinically difficult to determine ASD coexistence in patients with eating disorders. Restrictive AN is more common in younger patients, and self-induced vomiting usually appears during adolescence/young adulthood with the collapse of control. Some patients state that they “would never want to vomit” and are tolerant of weight gain even if they start overeating. We aimed to understand the essential difference between who vomit and who do not vomit and believed that this difference might be related to the ASD tendency. In this study, we hypothesised that the absence of self-induced vomiting may be associated with the presence of ASD and aimed to assess the presence of autism spectrum disorder tendencies in each eating disorder. Clarifying this association helps to consider the coexistence of ASD in the clinical setting and can lead to the next detailed ASD evaluation, and as a result, helps to determine the appropriate treatment and support individually.
Methods: We retrospectively evaluated 43 females aged 15–45 years who attended Chiba University Hospital between 2012 and 2016 using the Eating Disorder Examination Questionnaire and Autism Spectrum Quotient to quantify the severity of the eating disorder and to identify whether ASD tendency were present.
Results: There was no difference in the AQ between AN-BP and AN-R. The significant difference in the AQ score between BN and BED was clear. Of the four ED subtypes, BED had the highest ASD tendency. In the four groups, AN-BP had the longest duration of illness and was significantly longer than AN-R.
Conclusions: There was a difference in the AQ score by the presence or absence of self-induced vomiting. The present results help us understand why only those with binge eating disorder (BED) do not vomit even if they gain weight and why BED is admissive even if there is weight gain. Further Therefore, evaluating patients for the presence of self-induced vomiting when assessing them for EDs may help us understand the association with ASD tendencies.
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