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Patient preferences for psoriasis treatments can impact treatment satisfaction and adherence and may therefore influence clinical outcome. To assess the impact of treatment experience (satisfaction with current treatment, number of prior visits, disease duration, number of preceding therapies and currently prescribed treatment modalities) on treatment preferences. A computer-based conjoint analysis experiment was conducted to analyse preferences of patients with moderate or severe psoriasis (n = 163) treated at a German University Medical Center for outcome (probability, magnitude and duration of benefit; probability, severity and reversibility of side effects) and process attributes (location, frequency, duration, delivery method, individual cost) of psoriasis treatments. Relative importance scores (RIS) were calculated for each attribute and compared using anova, post hoc test and multivariate regression analysis. Participants with longer disease duration attached significantly greater importance to duration of benefit (β = 0.206, P = 0.018), whereas participants on oral therapy were more concerned about magnitude of benefit by trend (β = 0.218, P = 0.058). Participants receiving injectables not only set higher value to probability of benefit (RIS = 32.80 vs. 21.89, P = 0.025) but also to treatment location (RIS = 44.74 vs. 23.03, P = 0.011), delivery method (RIS = 43.75 vs. 19.29, P = 0.019), treatment frequency (RIS = 31.24 vs. 16.89, P = 0.005) and duration (RIS = 32.54 vs. 16.57, P = 0.003) when compared with others. Treatment satisfaction was significantly higher in participants on infusions or injections compared with those on phototherapy and mere topical therapy. Treatment preferences may change over time course and with treatment experience. Participants on injectables attach great importance to efficiency and convenience of therapies, and are highly satisfied with their treatment. © 2012 The Authors. Journal of the European Academy of Dermatology and Venereology © 2012 European Academy of Dermatology and Venereology.


M-L Schaarschmidt, N Umar, A Schmieder, D D Terris, M Goebeler, S Goerdt, W K Peitsch. Patient preferences for psoriasis treatments: impact of treatment experience. Journal of the European Academy of Dermatology and Venereology : JEADV. 2013 Feb;27(2):187-98

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PMID: 22225546

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