Bulimia and impulsive behaviour in middle adolescence

Area of Science:

• Adolescent psychology
• Eating disorder research
• Public health

Background:

• Bulimia nervosa in clinical samples is associated with impulse control deficits.
• Adolescent population studies on bulimia and dyscontrol behaviors are limited.
• This study addresses the gap by examining bulimia and impulsivity in a large adolescent sample.

Purpose of the Study:

• To evaluate the association between self-reported bulimic behavior and dyscontrol behaviors in adolescents.
• To investigate impulsivity markers including bullying, truancy, excessive drinking, and sexual disinhibition.
• To provide population-level data on bulimia and associated behaviors in adolescents aged 14-16.

Main Methods:

• A representative population sample of 8,787 Finnish adolescents (4,453 girls, 4,334 boys) aged 14-16 participated.
• Self-report questionnaires were administered to assess bulimic behavior and dyscontrol behaviors.
• The study achieved a high participation rate of 85.5% across four regions.

Main Results:

• Bulimic behavior showed a significant association with bullying, truancy, excessive drinking, and sexual disinhibition in both sexes.
• Odds ratios for bulimic-type eating pathology ranged from 1.7 to 4.1 for each dyscontrol behavior.
• A dose-response relationship was observed: the more dyscontrol behaviors co-occurred, the higher the likelihood of bulimic-type eating pathology.

Conclusions:

• Bulimic behavior is associated with various dyscontrol behaviors in the general adolescent population.
• Findings suggest a link between impulsivity and bulimia nervosa in adolescent boys and girls.
• The study underscores the importance of considering broader behavioral patterns when assessing eating pathology in adolescents.