Get access

Analysis of psoriasis patients registered with the Japanese Society for Psoriasis Research from 2002–2008

Authors


Hidetoshi Takahashi, M.D., Department of Dermatology, Asahikawa Medical College, 2-1-1-1 Midorigaokahigashi, Asahikawa 078-8510, Japan. Email: ht@asahikawa-med.ac.jp

Abstract

A survey of psoriasis patients from 1982–2001 has been reported by the Japanese Society for Psoriasis Research. The aim of this study is to analyze psoriasis patients in Japan registered from 2002–2008. A total of 11 631 cases were registered from 152 dermatological institutions in Japan. Males (7738 cases, 66.5%) were predominant over females (3893 cases, 33.5%). The clinical types of psoriasis were psoriasis vulgaris (88.5%), guttate psoriasis (3.9%), psoriasis arthropathica (3.3%), generalized pustular psoriasis (1.3%), psoriatic erythroderma (1.2%), localized pustular psoriasis (0.9%) and infantile psoriasis (0.1%). Topical corticosteroids (85.4%) and vitamin D3 (59.7%) products were the main previous topical agents. Previous systemic treatments included etretinate (8.8%), cyclosporin (8.3%) and methotrexate (2.0%). Use of topical vitamin D3 and systemic cyclosporin therapies has been increasing during the past 7 years. Topical psoralen and ultraviolet A therapy (PUVA) (7.6%) was the predominant phototherapy followed by UV-B (7.3%) and systemic PUVA (4.7%). Use of UV-B phototherapy has been increasing during the past 5 years. The survey of Japanese psoriasis patients during 2002–2008 disclosed that psoriasis arthropathica is more prevalent (1%) than that of the previous survey during 1982–2001. Use of topical vitamin D3 and systemic cyclosporin has been increasing during the past 7 years.

Get access to the full text of this article

Ancillary