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Cue reactivity as a predictor of outcome with bulimia nervosa.

The present study sought to evaluate specific hypotheses concerning the relation between cue reactivity and outcome among women with bulimia nervosa. Participants were 135 women aged between 17 and 45 years with a current, primary diagnosis of bulimia nervosa who participated in a randomized clinical trial evaluating the additive efficacy of exposure and nonexposure-based behavior therapy, to a core of cognitive behavior therapy (CBT). Physiological, self-report, and behavioral measures of cue reactivity to individualized high-risk binge foods were obtained at pretreatment and posttreatment. Primary, secondary, and tertiary outcome measures are reported for posttreatment and six-month follow-up. Self-report measures of cue reactivity at posttreatment were significantly positively associated with symptomatology at posttreatment. Cue reactivity at posttreatment was significantly positively associated with symptomatology at 6-month follow-up. However, cue reactivity at posttreatment did not contribute to the prediction of outcome at follow-up over and above posttreatment outcome. The notion that pretreatment cue reactivity may predict which treatment modality will be most beneficial (exposure or nonexposure-based treatment), as measured by reductions in symptomatology at posttreatment could not be supported. Implications for future research are discussed.