Prevalence of self-report photosensitivity in cutaneous lupus erythematosus

Background: Little is known about the prevalence of self-reported photosensitivity (PS) and its effects on quality of life in a US cutaneous lupus population. Objective: We sought to determine the prevalence of self-reported PS among a cutaneous lupus population and to examine its impact on quality of life. Methods: A total of 169 patients with lupus were interviewed about PS symptoms and completed the modified Skindex-29+3, a quality-of-life survey. A complete skin examination was conducted and the Cutaneous Lupus Erythematosus Disease Area and Severity Index was completed. Results: In all, 68% of patients reported some symptoms of PS. The PS group (those who reported a history of and current PS) scored worse on PS-related items of the modified Skindex-29+3 and had higher cutaneous disease activity as determined by the Cutaneous Lupus Erythematosus Disease Area and Severity Index. Patients with PS had worse symptoms and emotions and experienced significant functional impairments compared with patients who had cutaneous lupus without PS. Limitations: This study was done at a single referral center. Conclusions: Self-reported PS is very common among patients with cutaneous lupus and is associated with significant impairments related to symptoms, emotions, and daily functioning.