See the published version of this article at Journal of Eating Disorders.
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Research article
Noriko Numata
Research center for child mental development, Chiba University
Corresponding Author
ORCiD: https://orcid.org/0000-0003-0117-7740
License:
This work is licensed under a CC BY 4.0 License. Read Full License
View the published article at Journal of Eating Disorders.
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.
Keywords
eating disorder, subtype, autism spectrum disorder, self-induced vomiting, Autism Spectrum Quotient
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CURRENT STATUS: Published
Published
On 06 Jan, 2021
No community comments so far
Editorial decision: Accept
On 06 Dec, 2020
Editor assigned
On 05 Dec, 2020
Submission checks complete
On 05 Dec, 2020
Editor invited
On 05 Dec, 2020
Version (no preprint)
Posted 02 Dec, 2020
Editor assigned
On 02 Dec, 2020
Editorial decision: Accept but needs final editing
On 02 Dec, 2020
Submission checks complete
On 02 Dec, 2020
Editor invited
On 02 Dec, 2020
This version was not preprinted
No comments provided
Review #1 received
Received 06 Nov, 2020
Editorial decision: Minor Revision
On 06 Nov, 2020
Editor assigned
On 02 Nov, 2020
Reviewers invited
Invitations sent on 02 Nov, 2020
Reviewer #1 agreed
On 02 Nov, 2020
Submission checks complete
On 02 Nov, 2020
Editor invited
On 02 Nov, 2020
Version 2
Posted 31 Aug, 2020
No comments provided
Editorial decision: Minor Revision
On 06 Sep, 2020
Review #2 received
Received 05 Sep, 2020
Review #1 received
Received 31 Aug, 2020
Editor assigned
On 28 Aug, 2020
Reviewers invited
Invitations sent on 28 Aug, 2020
Reviewer #1 agreed
On 28 Aug, 2020
Reviewer #2 agreed
On 28 Aug, 2020
Submission checks complete
On 27 Aug, 2020
Editor invited
On 27 Aug, 2020
No comments provided
Review #1 received
Received 21 Jun, 2020
Editorial decision: Major Revision
On 21 Jun, 2020
Review #2 received
Received 18 Jun, 2020
Reviewer #2 agreed
On 08 Jun, 2020
Reviewers invited
Invitations sent on 06 Jun, 2020
Reviewer #1 agreed
On 06 Jun, 2020
Editor assigned
On 04 Jun, 2020
Submission checks complete
On 03 Jun, 2020
Editor invited
On 03 Jun, 2020
First submitted
On 28 May, 2020
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Subject Areas
Psychiatry
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This preprint is under consideration at Journal of Eating Disorders. A preprint is a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Learn more about In Review
Research article
Noriko Numata
Research center for child mental development, Chiba University
Corresponding Author
ORCiD: https://orcid.org/0000-0003-0117-7740
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Published
Published
On 06 Jan, 2021
No community comments so far
Editorial decision: Accept
On 06 Dec, 2020
Editor assigned
On 05 Dec, 2020
Submission checks complete
On 05 Dec, 2020
Editor invited
On 05 Dec, 2020
Version (no preprint)
Posted 02 Dec, 2020
Editor assigned
On 02 Dec, 2020
Editorial decision: Accept but needs final editing
On 02 Dec, 2020
Submission checks complete
On 02 Dec, 2020
Editor invited
On 02 Dec, 2020
This version was not preprinted
No comments provided
Review #1 received
Received 06 Nov, 2020
Editorial decision: Minor Revision
On 06 Nov, 2020
Editor assigned
On 02 Nov, 2020
Reviewers invited
Invitations sent on 02 Nov, 2020
Reviewer #1 agreed
On 02 Nov, 2020
Submission checks complete
On 02 Nov, 2020
Editor invited
On 02 Nov, 2020
Version 2
Posted 31 Aug, 2020
No comments provided
Editorial decision: Minor Revision
On 06 Sep, 2020
Review #2 received
Received 05 Sep, 2020
Review #1 received
Received 31 Aug, 2020
Editor assigned
On 28 Aug, 2020
Reviewers invited
Invitations sent on 28 Aug, 2020
Reviewer #1 agreed
On 28 Aug, 2020
Reviewer #2 agreed
On 28 Aug, 2020
Submission checks complete
On 27 Aug, 2020
Editor invited
On 27 Aug, 2020
No comments provided
Review #1 received
Received 21 Jun, 2020
Editorial decision: Major Revision
On 21 Jun, 2020
Review #2 received
Received 18 Jun, 2020
Reviewer #2 agreed
On 08 Jun, 2020
Reviewers invited
Invitations sent on 06 Jun, 2020
Reviewer #1 agreed
On 06 Jun, 2020
Editor assigned
On 04 Jun, 2020
Submission checks complete
On 03 Jun, 2020
Editor invited
On 03 Jun, 2020
First submitted
On 28 May, 2020
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Psychiatry
License:
This work is licensed under a CC BY 4.0 License. Read Full License
View the published article at Journal of Eating Disorders.
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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