Trajectories of eating and clinical symptoms over the course of a day hospital program for eating disorders

Abstract

Although it is well-established that day hospital programs for eating disorders significantly reduce clinical symptoms, the pre-test/post-test designs that were previously used do not provide information regarding the trajectory of symptoms during treatment. This study observed, on a weekly basis, the evolution of symptoms of 61 women suffering from eating disorders engaged in a day hospital program, and compared the trajectories of specific subgroups of patients. Results show that (a) the first half of the program was crucial for symptom changes; (b) although completers and non-completers presented similar initial improvement, their trajectories rapidly differentiated; and (c) poorer respondents initially reported more symptoms, showed a slower improvement, and never reached the non-clinical zone, whereas better-respondents reached the non-clinical cut-off point more rapidly.