Associations between self-harm and distinct types of impulsivity

Area of Science:

• Psychology
• Psychiatry
• Behavioral Science

Background:

• Self-harm classification remains debated.
• Understanding distinct self-harm behaviors is crucial for effective intervention.
• Impulsivity is frequently associated with self-harming behaviors.

Purpose of the Study:

• To characterize the associations between self-harm and impulsivity.
• To identify latent dimensions of self-harming behaviors.
• To explore the clinical significance of different self-harm subtypes.

Main Methods:

• Recruited 333 adults from the general community.
• Quantified self-harm history using the Self-Harm Inventory (SHI).
• Employed Principal Components Analysis (PCA) and ordinary least squares regression.

Main Results:

• PCA identified three self-harm dimensions: self-injurious, interpersonal, and reckless.
• Self-injurious self-harm includes behaviors like cutting and overdosing.
• Interpersonal self-harm involves emotionally or sexually abusive relationships; reckless self-harm includes substance abuse and job loss.

Conclusions:

• Three distinct, clinically significant subtypes of self-harm were identified.
• All identified self-harm dimensions correlate with a reduced quality of life.
• Clinicians should screen for impulse control disorders in individuals exhibiting self-harm, particularly self-injurious or interpersonal types.