Background/Objectives: Plaque psoriasis is a debilitating condition that significantly affects patient well-being. Limited data are available regarding the effect of psoriasis and treatment on health-related quality of life (HRQoL) and work ability among Taiwanese patients. To document and compare HRQoL, treatment satisfaction, and work disability among Taiwanese patients with current and past moderate-to-severe plaque psoriasis. Methods: This was a multicenter, non-interventional, cross-sectional study of adult patients with moderate-to-severe plaque psoriasis. During a single clinic visit, each patient was assessed for body surface area (BSA) involvement, Psoriasis Area Severity Index (PASI), Dermatology Life Quality Index (DLQI), Euro Quality of Life-5 Dimensions (EQ-5D), 10-level satisfaction scale for psoriasis treatment, and Working Productivity and Activity Impairment (WPAI). Multivariate regression was used to identify factors associated with HRQoL and work disability. Results: A total of 305 patients were included within the analysis. The mean PASI score was 11.83, and the mean BSA involvement was 20.90%. The mean EQ-5D score was 65.68 and the mean DLQI score was 12.55. Fewer than half of patients (45.68%) indicated they were satisfied with the standard therapy they were currently receiving. Among employed patients, the mean reduction in on-the-job effectiveness was 32.09% and the mean reduction in overall productivity was 33.48%. The regression analysis indicated that patients with more severe psoriasis defined by PASI scores show a greater impact in quality of life and impairment in work disability; and that patients who were satisfied with current standard treatment had a better quality of life. Conclusion: The effect of psoriasis on HRQoL among patients with psoriasis in Taiwan is substantial, with fewer than half of patients reporting satisfaction with therapeutic options.
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