Disordered Eating Is Underdiagnosed in Those with Type 1 Diabetes When Using a Conventional Questionnaire as Opposed to a Diabetes-Specific Questionnaire

Disordered eating has been identified as a concern among individuals with type 1 diabetes mellitus (T1DM) and is associated with poorer glycaemic control, which may result in vascular complications and increased morbidity and mortality. Despite this, there is a paucity of research examining disordered eating behaviour (DEB) among individuals with T1DM in Ireland. This study aimed to examine the prevalence of DEB among adults with T1DM attending an Irish hospital outpatient clinic. This cross-sectional study recruited 95 adults with T1DM attending an outpatient diabetes clinic at Sligo University Hospital. Screening for DEB was conducted using self-reported measures, including the Diabetes Eating Problem Survey–Revised (DEPS-R) and the Eating Disorder Examination Questionnaire (EDE-Q 6.0). DEB was identified in 16.3% (n = 15) of the participants using the DEPS-R and in 3.2% (n = 3) using the EDE-Q 6.0. Higher levels of DEB were observed among the female participants; however, a notable prevalence was also identified among the male participants. DEB demonstrated a weak positive correlation with body mass index (BMI) and a negative correlation with age and height. No association was found between DEB and glycated haemoglobin (HbA1c). The substantial prevalence of DEB among adults with T1DM, with nearly one in six participants affected, highlights the presence of clinically relevant disordered eating symptoms in this population. The findings suggest potential differences in case identification between diabetes-specific and generic screening tools. These results support further evaluation of diabetes-specific screening instruments such as the DEPS-R in adult T1DM populations within larger studies before routine clinical implementation.