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Phototherapy is safe and effective for treating psoriasis. Patients usually obtain light treatment in doctors’ offices or hospital settings, but units are also available for home use. Dermatologists have considered home phototherapy devices to not work as well as office units and to have more adverse effects. These investigators compared home and hospital outpatient administration of 311-nm narrowband UVB treatments to 196 patients with mild to severe psoriasis.
Topical steroids and vitamin D derivatives were allowed during the study and were more commonly taken by outpatient-treated participants. PASI scores and other parameters of efficacy were equivalent in the two groups, as was the cumulative dose of ultraviolet light. After 46 treatmen…