The large majority of coeliacs have a high degree of perceived dietary competence.

The treatment for coeliac disease (CD) is a gluten-free diet (GFD), which impacts the health-related quality of life (HRQoL). The aim of the study was to develop the Gluten-Free Diet Perceived Competence Scale (GFD-PCS): a short and precise CD-specific patient-reported outcome measure. The GFD-PCS was developed from the scales 'Perceived Competence (Maintaining a Healthy Diet)' and 'Perceived Competence for Diabetes'.