Binge eating disorder and night eating syndrome in adults with type 2 diabetes: a systematic review

BackgroundType 2 diabetes(T2DM) is increasing in prevalence worldwide, and is closely linked to obesity. Binge Eating Disorder (BED) and Night Eating Syndrome (NES) are eating disorders that are common in obesity, and mayaffect the managementas well as long term outcomes of T2DM.Therefore, the aim of this review was to assess the prevalence and associations of BEDor NES in adults with T2DM.MethodsWe conducted a systematic review. The databases MEDLINE, CINAHL and AMED were searched for articles which met the inclusion criteria; including patients >18years old, with T2DM, and BED and/or NES. The reference lists of included studies were also searched. Meta-analysis was not attempted due to the limited number of studies that measured the outcomes of interest.ResultsA total of 10 studies (2 included NES) were included in this systematic review. The number screened for BED and NES were 6527 and 1039 participants, respectively. Point prevalence was 1.2-8.0% for BED and 3.8-8.4% for NES. Patients with T2DM and BED had higher BMI than patients with T2DM without BED in the two studies that reported BMI. There was no statistically significant difference in HbA1c between patients with and without BED in the two studies that measured HbA1c.ConclusionsBED and NES are common in adults with T2DM, andBED is associated with higher BMI in patients with T2DM. However, only two studies reported important outcomes measures such as BMI and HbA1c in patients with T2DM. Hence, further well-designed studies are needed to assess the impact of BED and NES in patients with T2DM. Health Care Professionals should consider the diagnosis of BED and NES in patients with T2DM.