Bulimia nervosa in Singapore: Clinical profile, comorbidity and gender comparisons

Introduction Though eating disorder cases have been on the rise in Asia, little is known about them. Bulimia nervosa (BN) has been associated with poor treatment outcome and high mortality risk, and is the second most commonly diagnosed eating disorders in Singapore, after anorexia nervosa (AN), yet no report thus far has explored this condition. Objectives The current study seeks to describe the clinical population diagnosed with BN in our hospital treatment program, as well as to compare their clinical characteristics with a previously published local study on patients with AN. Method Retrospective medical records review was carried out for patients diagnosed with BN in our hospital's eating disorders treatment program. Patient records from 2003 to 2013 were retrieved and analyzed. We also further compared presenting characteristics across genders and with AN patients. Results Between 2003 and 2013, 348 patients were diagnosed with BN by psychiatrists based on the Diagnostic and Statistical Manual of Mental Disorders (DSM IV-TR). BN patients presented with high rate of self-harm behaviors (37.1%), previous suicide attempts (19.0%) and psychiatric comorbidities (67.5%), many of which require inpatient treatment. Significant differences were found between genders and in comparison with the AN patients. Conclusion Our results suggest that many patients with BN present with severe psychiatric comorbidities, in some aspects more severe than the AN population. The current study appeals for the development of more effective detection and treatment of vulnerable populations in Singapore. We further discuss about the potential roles of mental health literacy and stigmatization in influencing treatment-seeking behaviors.