A repeated measures cohort study was conducted to investigate the impact of attending a day treatment programme on physical and psychological state, and to assess which baseline factors predicted level of recovery. Physical and psychological outcomes of treatment were analysed for 116 patients admitted to the treatment programme between 1996 and 2006 and were found to be in line with previous day care evaluations, with the majority of patients showing improvements on all measures. A multiple regression analysis revealed several factors to be predictive of treatment outcomes including patient demographics, comorbidities and traumatic life events. In particular, those patients who benefited most from the treatment had a lower body mass index at admission, stayed longer at the unit, were older, less likely to have other physical and psychiatric comorbidities, particularly obsessive compulsive disorder or a history of sexual abuse, and whose most predominant eating disorder problem was characterised by low weight.