Reliability and construct validity of the Hungarian version of Skindex-Mini

Abstract

The Skindex-Mini is a brief 3-item dermatology-specific quality-of-life tool, that has been previously validated in English and Spanish. This study evaluated the reliability and construct validity of the Hungarian version in patients with skin diseases. In a cross-sectional study, 578 patients with inflammatory or noninflammatory conditions completed the Hungarian Skindex-Mini alongside established measures including the Dermatology Life Quality Index–Revised, Difficulties in Emotion Regulation Scale-16, and Stigmatization Scale for Chronic Illnesses–8 Questionnaire. Validity was assessed using and Spearman correlations. Confirmatory factor analysis supported a unidimensional structure, while Item Response Theory analyses indicated strong item discriminatory power and measurement invariance across groups. The tool demonstrated moderate convergent validity with stigma and distress, and acceptable discriminant validity with well-being. The Hungarian Skindex-Mini exhibits robust psychometric properties, supporting its use for rapid screening of dermatology-related quality-of-life burden. Its brevity makes it suitable for diverse clinical and research applications.