Abstract
Eating disorders (EDs), especially anorexia nervosa (AN), bulimia nervosa (BN), and binge-eating disorder (BED) often co-occur with suicidal behaviour and non-suicidal self-injury (NSSI). The shared epidemiological and risk factors of EDs, suicidal behaviour, and NSSI include the self-destructive and body-focused characteristics of these behaviours; body dissatisfaction, interoceptive deficits, emotion dysregulation, impulsivity, and several environmental risk factors. Compared to the general population, lifetime rates of suicidal ideation, suicide attempts, and NSSI are increased among patients with AN, BN, or BED. Risk factors play a role in the development of suicidal behaviour in patients with EDs, including comorbid psychopathology that is associated with an increased risk of suicide itself, increased impulsive behaviours including NSSI, the duration of illness, and the number of previous treatments. Being aware of the increased risk and the ED-specific risk factors of suicidal behaviour are essential for preventing suicide and treating clinical risk factors in patients with EDs.
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