Eating disorders-Related hospitalizations in Portugal: A nationwide study from 2000 to 2014.

Introduction: Recent evidence suggests that incidence of Anorexia nervosa (AN) has remained stable over the last decades in Western Europe, while decreasing for Bulimia nervosa (BN). It is well-known that most individuals with an ED (Eating disorder) do not seek medical treatment.

Objective: The present study analyses hospitalizations related with EDs held in mainland Portuguese public hospitals between 2000 and 2014.

Method: A retrospective observational study was performed gathering all inpatient episodes with primary or secondary diagnosis of ED. Number of patients, gender, mean age at discharge, suicide-attempts related hospitalizations, in-hospital mortality, length of stay, and mean charges were analyzed.

Results: There were a total of 4,485 hospitalizations with an associated ED. AN was the most frequent ED (n = 2,806). Suicide attempt-related hospitalizations were most common among patients with BN (10.1% of BN hospitalizations) or AN (5.2% of AN hospitalizations).

Discussion: AN has higher in-hospital mortality than BN. We observed a higher proportion of suicide related hospitalizations in BN when compared to AN. Although pica, rumination disorder, and psychogenic vomiting represent a smaller portion of all EDs, this study was the first to describe hospitalization trends for this set of EDs for a 15-year period, to the best of our knowledge.