Prevalence of Eating Disorders in Individuals with Type 2 Diabetes: A Cohort Comparison of Patients and Controls
received 05 April 2016
revised 08 December 2016
accepted 08 February 2017
13 April 2017 (eFirst)
To determine the prevalence of eating disorders (ED) in a cohort of patients with type 2 diabetes (T2DM), to identify the more predominant forms of ED, and to clarify if ED is associated with impaired metabolic control.
A cohort of 517 patients with T2DM aged≥40 years and a control cohort of 304 patients without diabetes, age and gender matched, were enrolled from 3 primary care centres. All subjects completed the Questionnaire of Eating and Weight Patterns-Revised (QEWP-R), followed by a structured interview (EDE 17th version).
The overall prevalence of ED in patients with T2DM and control cohorts was 32.5% and 19.7%, respectively (p<0.001). The frequency of ED in the patients with T2DM cohort was significantly higher in male than in female: 61.9% vs. 38.1% of the ED, respectively (p<0.001). The most prevalent form was unspecified feeding or eating disorder, mainly uncontrolled picking at food in 24.6% of subjects, which is significantly more prevalent in the patients with T2DM cohort than in controls, 24.6% vs. 14.5% (p<0.001). Mean HbA1c was 7.15%±1.1% (55 mmol/mol, 159 mg/dL) and 6.84%±1.1% (51 mmol/mol,150 mg/dL) in patients with T2DM with ED and without ED, respectively (p=0.047).
ED have a high prevalence in patients with T2DM, and the coexistence of type 2 diabetes and ED significantly affects metabolic control in these patients.