The validity of the fifth and the 10th Body Mass Index percentile as weight cut-offs for anorexia nervosa in adolescence: No evidence from quantitative and network investigation of psychopathology.
adolescence
anorexia nervosa
network analysis
psychopathology
underweight
Journal
European eating disorders review : the journal of the Eating Disorders Association
ISSN: 1099-0968
Titre abrégé: Eur Eat Disord Rev
Pays: England
ID NLM: 9436977
Informations de publication
Date de publication:
03 2021
03 2021
Historique:
received:
22
05
2020
revised:
12
11
2020
accepted:
23
11
2020
pubmed:
15
12
2020
medline:
27
11
2021
entrez:
14
12
2020
Statut:
ppublish
Résumé
Although the fifth Body Mass Index (BMI) percentile is the Diagnostic and Statistic Manual of Mental Disorders -5 weight cut-off criterion to diagnose anorexia nervosa (AN) in children and adolescents, its validity has not been proved, and the 10th percentile value is often applied. We aimed to investigate the diagnostic validity of these weight cut-offs. We compared general and eating-disorder (ED) specific psychopathology in 380 adolescents with AN or atypical AN. They were grouped first with respect to the fifth BMI percentile and then with respect to the 10th BMI percentile and differences between groups were analysed. Network analyses on psychopathological symptoms were also conducted. Adolescents with BMI above the fifth and the 10th percentile reported more severe ED specific symptomatology compared to those with BMI below these cut-offs. No significant differences emerged between groups neither in general psychopathology nor in the network structure of psychopathology. The fifth BMI percentile does not discriminate psychopathology severity in adolescents with AN. From the psychopathology perspective, our findings suggest that adolescents with atypical AN deserve the same clinical and research attention as those with full AN. Future studies are needed to identify a more accurate definition of underweight in adolescents.
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
232-244Informations de copyright
© 2020 Eating Disorders Association and John Wiley & Sons Ltd.
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