“…For example, the Skindex-29, 12 a commonly used QoL questionnaire for skin diseases, [1][2][3]7,[14][15][16] lacks questions addressing concerns unique to patients with CLE such as avoidance of sun exposure. As a result, the 'cutaneous lupus erythematosus quality of life' (CLE-QoL) was developed to include additional CLE-specific domains like body image and photosensitivity, thanks to input from patients with CLE via focus groups, 17 VitiQol, 18 and the Skindex-29+3, which contains three additional CLE-specific questions on photosensitivity and alopecia. 2,3,14 Regardless of whether a PRO measure is generic or diseasespecific, it must demonstrate satisfactory psychometric properties, including reliability, responsiveness to changes (sensitivity) and validity in the measured domain.…”