Feeding and Eating Disorders (FEDs) and Disordered Eating Behaviors (DEBs) have been extensively studied over time as they represent a public health problem and significantly impact physical and mental health of those who suffer from it (Krug et al., 2025). In literature there is evidence in favor of the association between FEDs, DEBs and three transdiagnostic factors: perfectionism, intolerance of uncertainty (IU) and emotional dysregulation (Bardone-Cone et al., 2007; Brown et al., 2017; Konstantellou & Reynolds, 2010; Lavender et al., 2014; Zhou et al., 2025). However, previous research has focused on adolescents and young adults. The present study has a dual aim. First, to investigate the relationship between dysfunctional eating behaviors and transdiagnostic factors in a non-clinical sample from the adult Italian population. The second aim is exploratory and is about the joint contribution of the various transdiagnostic factors in predicting the presence of dysfunctional eating behaviors considered in the three facets of dieting, bulimic symptoms and control over nutrition. Participants filled out a battery of self-report questionnaires. The results highlighted positive correlations between bulimic symptoms and transdiagnostics factors and positive correlations between dieting, emotional dysregulation and perfectionism. A positive correlation also emerged between the symptoms of control over nutrition and perfectionism. To investigate the second hypothesis, a multivariate multiple regression was conducted: the dependent variables were dysfunctional eating behaviors (i.e., dieting, bulimic symptoms and control over nutrition). Significant interactions have emerged between perfectionism and anxiety and between perfectionism and IU in models that had as dependent variables bulimic behaviors and food restriction behaviors. These results support the association between the transdiagnostic factors considered and dysfunctional eating behaviors. Furthermore, the IU emerged as a moderator, only people with high levels of IU experience a substantial increase in dysfunctional eating behaviors. These results highlight the importance of considering IU in the assessment and treatment of DEBs. However, it is necessary to conduct more studies on clinical samples in order to obtain more solid and generalizable evidence.
I Disturbi della Nutrizione e dell’Alimentazione (DNA) e i Disordered Eating Behaviors (DEBs) sono stati ampiamente studiati nel tempo in quanto rappresentano un problema di sanità pubblica e impattano significativamente sulla salute fisica e mentale di chi ne soffre (Krug et al., 2025). Nella letteratura vi sono evidenze a favore dell’associazione tra DNA, DEBs e tre fattori transdiagnostici: perfezionismo, intolleranza all’incertezza (Intolerance of Uncertainty; IU) e disregolazione emozionale (Bardone-Cone et al., 2007; Brown et al., 2017; Konstantellou & Reynolds, 2010; Lavender et al., 2014; Zhou et al., 2025). Tuttavia, le ricerche precedenti si sono concentrate sugli adolescenti e sui giovani adulti. Il presente studio ha un duplice obiettivo. Innanzitutto, quello di indagare la relazione tra comportamenti alimentari disfunzionali e fattori transdiagnostici in un campione non clinico tratto dalla popolazione italiana adulta. Il secondo obiettivo, a carattere esplorativo, riguarda il contributo congiunto dei vari fattori transdiagnostici nel predire la presenza di comportamenti alimentari disfunzionali considerati nelle tre sfaccettature di restrizione alimentare, sintomi bulimici e controllo sull’alimentazione. I partecipanti allo studio hanno compilato una batteria di questionari self-report. I risultati hanno evidenziato correlazioni positive tra i sintomi bulimici e i fattori transdiagnostici considerati e correlazioni positive tra i sintomi di restrizione alimentare, disregolazione emozionale e perfezionismo. È emersa anche una correlazione positiva tra i sintomi di controllo sull’alimentazione e il perfezionismo. Per indagare il secondo obiettivo è stata condotta una regressione multipla multivariata, le variabili dipendenti erano i comportamenti alimentari disfunzionali: restrizione alimentare, sintomi bulimici e controllo sull’alimentazione. Sono emerse interazioni significative tra il perfezionismo e l’ansia e tra il perfezionismo e l’IU nei modelli che avevano come variabili dipendenti i comportamenti bulimici e i comportamenti di restrizione alimentare. Questi risultati supportano l’associazione tra i fattori transdiagnostici considerati e i comportamenti alimentari disfunzionali. È emerso, inoltre, il ruolo di moderatore dell’IU, solo per persone con alti livelli di IU si assiste a un incremento sostanziale dei comportamenti alimentari disfunzionali. Da questi risultati si evince l’importanza di considerare l’IU nella valutazione e del trattamento dei DEBs. Tuttavia, si rende necessaria la conduzione di studi su campioni clinici per poter ottenere evidenze più solide e generalizzabili.
Perfezionismo, intolleranza all'incertezza e disregolazione emozionale nei comportamenti alimentari disfunzionali: uno studio sperimentale sui fattori transdiagnostici
MUSCATELLO, FRANCESCA
2024/2025
Abstract
Feeding and Eating Disorders (FEDs) and Disordered Eating Behaviors (DEBs) have been extensively studied over time as they represent a public health problem and significantly impact physical and mental health of those who suffer from it (Krug et al., 2025). In literature there is evidence in favor of the association between FEDs, DEBs and three transdiagnostic factors: perfectionism, intolerance of uncertainty (IU) and emotional dysregulation (Bardone-Cone et al., 2007; Brown et al., 2017; Konstantellou & Reynolds, 2010; Lavender et al., 2014; Zhou et al., 2025). However, previous research has focused on adolescents and young adults. The present study has a dual aim. First, to investigate the relationship between dysfunctional eating behaviors and transdiagnostic factors in a non-clinical sample from the adult Italian population. The second aim is exploratory and is about the joint contribution of the various transdiagnostic factors in predicting the presence of dysfunctional eating behaviors considered in the three facets of dieting, bulimic symptoms and control over nutrition. Participants filled out a battery of self-report questionnaires. The results highlighted positive correlations between bulimic symptoms and transdiagnostics factors and positive correlations between dieting, emotional dysregulation and perfectionism. A positive correlation also emerged between the symptoms of control over nutrition and perfectionism. To investigate the second hypothesis, a multivariate multiple regression was conducted: the dependent variables were dysfunctional eating behaviors (i.e., dieting, bulimic symptoms and control over nutrition). Significant interactions have emerged between perfectionism and anxiety and between perfectionism and IU in models that had as dependent variables bulimic behaviors and food restriction behaviors. These results support the association between the transdiagnostic factors considered and dysfunctional eating behaviors. Furthermore, the IU emerged as a moderator, only people with high levels of IU experience a substantial increase in dysfunctional eating behaviors. These results highlight the importance of considering IU in the assessment and treatment of DEBs. However, it is necessary to conduct more studies on clinical samples in order to obtain more solid and generalizable evidence.| File | Dimensione | Formato | |
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https://hdl.handle.net/20.500.12608/96261