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Abstract

The current study had the aim to assess whether temperamental traits mediate the relationship between time of puberty and eating disorder (ED) severity using a sample of 292 outpatients with EDs [68 with Anorexia Nervosa Restrictive Type (AN-R), 101 with Anorexia Nervosa Binge Purging Type (AN-BP), 72 with Bulimia Nervosa (BN) and 51 with Other Specified Feeding and Eating Disorder (OSFED)]. Age of puberty, the severity of EDs, and temperamental traits were assessed through Demographic and Medical History Form, Eating Disorder Examination 17.0d (EDE-17.0d) and Temperament and Character Inventory-Revised (TCI-R), with a focus on the temperament scales: novelty seeking (TCI-NS), harm avoidance (TCI-HA), reward dependence (TCI-RD) and persistence (TCI-P). One-way ANOVA, correlation, and mediating analyses through structural equation modeling were performed to test the relationship between variables under investigation and assess if the four temperamental traits act as mediators in the relationship between time of puberty and ED severity. The results show a full mediating effect of the temperamental sub-scales on the relationship between puberty and EDE-17. In particular, TCI-R HA showed a complementary mediation on the relationship between age of puberty and EDE-17.0d, meaning that age of puberty increases the level of TCI-R HA, which in turn increases the severity of ED, confirming that this temperamental trait plays an important role in the development of ED after puberty. To conclude, temperamental traits seem to play a full mediating role in the relationship between puberty and ED severity, but more research is needed.

Item Type:	Article
Authors/Creators:	Paganini, C and Peterson, G and Andrews, K
Keywords:	eating disorders, mediation analysis, puberty, temperaments, personality
Journal or Publication Title:	The Journal of Genetic Psychology
Publisher:	Heldref Publications
ISSN:	0022-1325
DOI / ID Number:	10.1080/00221325.2021.1940822
Copyright Information:	Copyright 2021 Taylor & Francis Group, LLC
Related URLs:	UTAS Profile: Peterson, G
Item Statistics:	View statistics for this item

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