Association between objective and subjective binge eating and psychopathology during a psychological treatment trial for bulimic symptoms.

Although loss of control (LOC) while eating is a core construct of bulimia nervosa (BN), questions remain regarding its validity and prognostic significance independent of overeating. We examined trajectories of objective and subjective binge eating (OBE and SBE, respectively; i.e., LOC eating episodes involving an objectively or subjectively large amount of food) among adults participating in psychological treatments for BN-spectrum disorders (n = 80). We also explored whether changes in the frequency of these eating episodes differentially predicted changes in eating-related and general psychopathology and, conversely, whether changes in eating-related and general psychopathology predicted differential changes in the frequency of these eating episodes. Linear mixed models with repeated measures revealed that OBE decreased twice as rapidly as SBE throughout treatment and 4-month follow-up. Generalized linear models revealed that baseline to end-of-treatment reductions in SBE frequency predicted baseline to 4-month follow-up changes in eating-related psychopathology, depression, and anxiety, while changes in OBE frequency were not predictive of psychopathology at 4-month follow-up. Zero-inflation models indicated that baseline to end-of-treatment changes in eating-related psychopathology and depression symptoms predicted baseline to 4-month follow-up changes in OBE frequency, while changes in anxiety and self-esteem did not. Baseline to end-of-treatment changes in eating-related psychopathology, self-esteem, and anxiety predicted baseline to 4-month follow-up changes in SBE frequency, while baseline to end-of-treatment changes in depression did not. Based on these findings, LOC accompanied by objective overeating may reflect distress at having consumed an objectively large amount of food, whereas LOC accompanied by subjective overeating may reflect more generalized distress related to one's eating- and mood-related psychopathology. BN treatments should comprehensively target LOC eating and related psychopathology, particularly in the context of subjectively large episodes, to improve global outcomes.

Association of internalizing disorders and allergies in a child and adolescent psychiatry clinical sample.

OBJECTIVE: To investigate the specificity of the association between internalizing disorders (anxiety and depression) and atopic disorders (asthma, allergic rhinitis, urticaria, and atopic dermatitis) in a child and adolescent psychiatric clinical sample. METHOD: A sample of 184 youths was evaluated for current DSM-IV psychiatric disorders (clinical interview) and lifetime history of atopic disorders (parent report and chart review) in a child and adolescent psychiatry clinic from September 1, 2001, through December 31, 2002. Logistic regression analyses were used to assess the differential likelihood of having a lifetime history of atopic disorders among psychiatrically ill youths with and without internalizing disorders. RESULTS: Youths with internalizing disorders were significantly more likely than those with noninternalizing disorders to have a lifetime history of atopic disorders (odds ratio [OR] = 1.95, 95% CI = 1.02 to 3.73, p = .04). Moreover, analyses distinguishing youths with "pure" internalizing disorders from those with comorbid internalizing and externalizing disorders, "pure" externalizing disorders, and other psychiatric disorders showed that the association with atopic disorders was specific for "pure" internalizing disorders only (OR = 2.40, 95% CI = 1.09 to 5.30, p = .03). CONCLUSIONS: Atopic disorders may be associated specifically with "pure" internalizing disorders in psychiatrically ill youths. Additional studies are needed to identify the underlying mechanisms of this specificity for the subsequent development of effective treatment and prevention interventions that target both disorders.