Inpatients with severe-enduring anorexia nervosa: Understanding the "enduringness" specifier

Area of Science:

• Psychiatry
• Clinical Psychology
• Eating Disorders Research

Background:

• A clear definition of severe and enduring anorexia nervosa (SE-AN) is needed to optimize treatment.
• Current definitions are debated, necessitating further investigation into illness duration and clinical outcomes.

Purpose of the Study:

• To investigate profiles of anorexia nervosa (AN) inpatients based on duration of illness (DOI).
• To understand how varying DOI impacts clinical outcomes and treatment responsiveness.

Main Methods:

• 169 AN inpatients were categorized by DOI: short (<3 years), medium (3-6.99 years), and long (≥7 years).
• Data collected included AN history, clinical data, eating and general psychopathology, personality traits, stage of change, and quality of life.
• Hospitalization outcomes were assessed for each group.

Main Results:

• Longer duration AN (LD-AN) patients were older, more likely binge-purging subtype, had more treatment failures, and lower lifetime BMI.
• All groups responded to hospitalization, but short duration AN (SD-AN) patients showed less improvement in drive for thinness and body concerns.
• No significant differences in most measures were observed across groups.

Conclusions:

• Illness "enduringness" is not a reliable specifier of AN severity.
• Hospitalization is effective for medium and long-duration AN.
• Short-duration AN patients benefit from interventions targeting cognitive aspects like over-evaluation of body shape.