A Cross-sectional Study on Quality of Life in EB: Validation of the Italian QOLEB and Assessment in Italian Patients

Inherited epidermolysis bullosa comprises a heterogeneous group of skin fragility diseases, presenting with a range of manifestations and complications that profoundly affect quality of life (QoL). A disease-specific instrument, Quality of Life in EB (QOLEB), has been developed to assess the impact of epidermolysis bullosa signs and symptoms on QoL. The aim of this cross sectional study, conducted as part of a European project - BUR-EB, was to test the psychometric properties of the Italian version of the QOLEB and to assess QoL in Italian epidermolysis bullosa patients. Demographic, clinical, and QOLEB data of 56 Italian patients aged ≥11 years participating in the BUR-EB online survey were analysed. Principal component analysis showed excellent internal consistency of Italian QOLEB, and high convergent validity with the generic questionnaire EQ-5D. About 40% of patients reported severe to very severe disease burden, and a strong correlation was observed between disease severity and QOLEB scores. Independent variables associated with worse QoL were pain, chronic wounds, wheelchair use and patient organization membership. Our study confirms the good psychometric properties of the Italian QOLEB. In addition to depicting the major impact of epidermolysis bullosa on QoL, it identifies pain, chronic wounds and functional disability as major targets for therapeutic interventions.