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- Eating disorders and non-suicidal self-injury: Structural equation modelling of a conceptual modelPublication . Vieira, Ana Isabel; Machado, Bárbara C.; Moreira, Célia S.; Machado, Paulo P.P.; Brandão, Isabel; Roma‐Torres, António; Gonçalves, SóniaEvidence suggests several risk factors for both eating disorders (ED) and nonsuicidal self‐injury (NSSI), but the relationships between these factors are not well understood. Considering our previous work and a conceptual model, this cross‐sectional study aimed to assess the relationships among distal and proximal factors for the presence of NSSI in ED. We assessed 245 ED patients with the Oxford Risk Factor Interview for ED. Structural equation modelling revealed that both distal and proximal factors were related to the presence of NSSI in ED, disclosing a mediating role of the proximal factors. Stressful life events mediated the relationship between childhood sexual abuse, peer aggres-sion, and both ED and NSSI. Childhood physical abuse was related to ED and NSSI via substance use, negative self‐evaluation, and suicide attempts. Find- ings provided support for the conceptual model and highlight the possible mechanisms by which psychoso cial factors may lead to ED and NSSI.
- Putative risk factors for non-suicidal self-injury in eating disordersPublication . Vieira, Ana Isabel; Machado, Bárbara C.; Machado, Paulo P. P.; Brandão, Isabel; Roma-Torres, António; Gonçalves, SóniaEvidence suggests a common association between eating disorders (EDs) and non-suicidal self-injury (NSSI). The present study aimed to investigate the potential risk factors for NSSI among ED patients. We assessed 245 ED patients with the Oxford Risk Factor Interview for ED. The results showed that 33% of ED patients reported NSSI in their lifetime. NSSI appeared to occur more frequently among binge eating/purging type ED patients than among patients with other ED and to be related to a more severe eating pathology. A younger age at the onset of eating problems, more negative self-evaluation, suicide attempts, substance abuse, parents’ low weight, family tension at mealtime, parental alcohol problems, childhood abuse, peer aggression, and negative antecedent life events were more common among patients with co-occurring EDs and NSSI than among patients without NSSI. The results may inform the risk assessment and treatment of NSSI in EDs in the early detection period.