The effects of childhood trauma on daily mood lability and comorbid psychopathology in bulimia nervosa.

A study of bulimic women examined the relationship between histories of childhood trauma and psychiatric disorders, as well as daily measures of mood and behavior. One hundred twenty-three women with bulimia nervosa were assessed with interviews and completed an Ecological Momentary Assessment (EMA) protocol in which they carried a palmtop computer for 2 weeks. Sexual abuse was associated with a history of mood and anxiety disorders, and emotional abuse with eating disorder psychopathology. In the EMA assessment, sexual abuse was associated with daily purging frequency and self-destructive behavior. Emotional abuse was associated with average daily mood and mood lability. These findings support the idea that child maltreatment may be associated with various aspects of bulimia-related psychopathology.