Predictors of Treatment Outcome in Persons With Anorexia Nervosa: On the Practice of Regressing Body Mass Index at the End of Treatment on Body Mass Index at Baseline.
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| Title: | Predictors of Treatment Outcome in Persons With Anorexia Nervosa: On the Practice of Regressing Body Mass Index at the End of Treatment on Body Mass Index at Baseline. |
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| Authors: | Meule, Adrian, Kolar, David R., Voderholzer, Ulrich |
| Source: | International Journal of Eating Disorders. Jan2025, Vol. 58 Issue 1, p254-258. 5p. |
| Subjects: | Anorexia nervosa treatment, Body mass index, Patients, Hospital admission & discharge, Hospital care, Treatment effectiveness, Discharge planning, Descriptive statistics |
| Abstract: | Objective: It is often stated that a higher body mass index (BMI) at the beginning of treatment predicts a better weight outcome at the end of treatment in persons with anorexia nervosa (AN). However, this interpretation is based on the between‐persons relationship of BMI at the two measurements, which primarily reflects the fact that the rank‐ordering of persons according to their BMI is quite stable over time. In contrast, a lower BMI at baseline is related to a larger BMI change, which primarily reflects the fact that the variance of BMI at the end of treatment is larger than that at baseline. This study aimed to demonstrate these relationships empirically and caution against interpreting BMI at baseline as a predictor of BMI at discharge or BMI change. Method: Changes of BMI from admission to discharge were analyzed based on 4863 persons with AN (97% female) who received inpatient treatment between 2015 and 2024. Results: BMI at admission was positively related to BMI at discharge (r = 0.55) but negatively related to BMI change from admission to discharge (r = −0.39). Discussion: While it is true that a higher BMI at baseline is associated with a higher BMI at the end of treatment, a lower BMI at baseline is actually related to a larger weight gain during treatment. Yet, concluding that the treatment is more effective for patients with low or high BMI at baseline would be incorrect in either case, as the independent and dependent variables are the same variables measured at different time points. [ABSTRACT FROM AUTHOR] |
| Copyright of International Journal of Eating Disorders is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Psychology and Behavioral Sciences Collection |
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| Header | DbId: pbh DbLabel: Psychology and Behavioral Sciences Collection An: 183925859 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Predictors of Treatment Outcome in Persons With Anorexia Nervosa: On the Practice of Regressing Body Mass Index at the End of Treatment on Body Mass Index at Baseline. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Meule%2C+Adrian%22">Meule, Adrian</searchLink><br /><searchLink fieldCode="AR" term="%22Kolar%2C+David+R%2E%22">Kolar, David R.</searchLink><br /><searchLink fieldCode="AR" term="%22Voderholzer%2C+Ulrich%22">Voderholzer, Ulrich</searchLink> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Eating+Disorders%22">International Journal of Eating Disorders</searchLink>. Jan2025, Vol. 58 Issue 1, p254-258. 5p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Anorexia+nervosa+treatment%22">Anorexia nervosa treatment</searchLink><br /><searchLink fieldCode="DE" term="%22Body+mass+index%22">Body mass index</searchLink><br /><searchLink fieldCode="DE" term="%22Patients%22">Patients</searchLink><br /><searchLink fieldCode="DE" term="%22Hospital+admission+%26+discharge%22">Hospital admission & discharge</searchLink><br /><searchLink fieldCode="DE" term="%22Hospital+care%22">Hospital care</searchLink><br /><searchLink fieldCode="DE" term="%22Treatment+effectiveness%22">Treatment effectiveness</searchLink><br /><searchLink fieldCode="DE" term="%22Discharge+planning%22">Discharge planning</searchLink><br /><searchLink fieldCode="DE" term="%22Descriptive+statistics%22">Descriptive statistics</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Objective: It is often stated that a higher body mass index (BMI) at the beginning of treatment predicts a better weight outcome at the end of treatment in persons with anorexia nervosa (AN). However, this interpretation is based on the between‐persons relationship of BMI at the two measurements, which primarily reflects the fact that the rank‐ordering of persons according to their BMI is quite stable over time. In contrast, a lower BMI at baseline is related to a larger BMI change, which primarily reflects the fact that the variance of BMI at the end of treatment is larger than that at baseline. This study aimed to demonstrate these relationships empirically and caution against interpreting BMI at baseline as a predictor of BMI at discharge or BMI change. Method: Changes of BMI from admission to discharge were analyzed based on 4863 persons with AN (97% female) who received inpatient treatment between 2015 and 2024. Results: BMI at admission was positively related to BMI at discharge (r = 0.55) but negatively related to BMI change from admission to discharge (r = −0.39). Discussion: While it is true that a higher BMI at baseline is associated with a higher BMI at the end of treatment, a lower BMI at baseline is actually related to a larger weight gain during treatment. Yet, concluding that the treatment is more effective for patients with low or high BMI at baseline would be incorrect in either case, as the independent and dependent variables are the same variables measured at different time points. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of International Journal of Eating Disorders is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=pbh&AN=183925859 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1002/eat.24324 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 5 StartPage: 254 Subjects: – SubjectFull: Anorexia nervosa treatment Type: general – SubjectFull: Body mass index Type: general – SubjectFull: Patients Type: general – SubjectFull: Hospital admission & discharge Type: general – SubjectFull: Hospital care Type: general – SubjectFull: Treatment effectiveness Type: general – SubjectFull: Discharge planning Type: general – SubjectFull: Descriptive statistics Type: general Titles: – TitleFull: Predictors of Treatment Outcome in Persons With Anorexia Nervosa: On the Practice of Regressing Body Mass Index at the End of Treatment on Body Mass Index at Baseline. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Meule, Adrian – PersonEntity: Name: NameFull: Kolar, David R. – PersonEntity: Name: NameFull: Voderholzer, Ulrich IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 01 Text: Jan2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 02763478 Numbering: – Type: volume Value: 58 – Type: issue Value: 1 Titles: – TitleFull: International Journal of Eating Disorders Type: main |
| ResultId | 1 |
