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Specialist treatment of psoriasis in Sweden between 2007 and 2009: Incidence and treatment allocation during a two-year follow-up
Umeå University, Faculty of Social Sciences, Umeå School of Business and Economics (USBE), Statistics.
Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Dermatology and Venerology.
Centre for Pharmacoepidemiology (CPE), Karolinska Institutet, Karolinska University Hospital, Solna, Sweden.
(English)Manuscript (preprint) (Other academic)
National Category
Dermatology and Venereal Diseases
Research subject
Dermatology and Venerology
Identifiers
URN: urn:nbn:se:umu:diva-113899OAI: oai:DiVA.org:umu-113899DiVA: diva2:890990
Available from: 2016-01-05 Created: 2016-01-05 Last updated: 2016-01-07
In thesis
1. Psoriasis in Sweden: observational studies from an epidemiological perspective
Open this publication in new window or tab >>Psoriasis in Sweden: observational studies from an epidemiological perspective
2016 (English)Doctoral thesis, comprehensive summary (Other academic)
Alternative title[sv]
Psoriasis i Sverige : observationella studier ur ett epidemiologiskt perspektiv
Abstract [en]

Background: Psoriasis is a heterogeneous disease with several clinical manifestations; the symptoms are characterized by redness, scaliness and thickness of the skin. There are several treatment options available for psoriasis and patients with moderate to severe psoriasis generally need systemic agents. In 2004 biologics were introduced for patients with moderate to severe psoriasis in Sweden.

Methods: The Swedish Health Care Registers and the Swedish registry for systemic treatment of psoriasis PsoReg, were used to; estimate the incidence of psoriasis cases in the Swedish specialist care, to examine the treatment allocation and important factors related to the initiation of especially biologic treatment.

Results: On average 9000 new psoriasis patients entered specialist care in Sweden each year under study, corresponding to an incidence of 98 patients per 100,000 person-years. In the treatment allocation analysis of the incident psoriasis cases in the Swedish specialist care Patients living in a Metropolitan Area and with a University degree were more likely to initiate a biologic treatment. By analysing biologic-naïve patients enrolled in PsoReg, PASI (the physician’s assessment of the psoriasis severity) and Psoriasis Arthropathy were shown to be two important factors associated with the initiation of biologic treatment while sex was not. Furthermore, it was also shown that the decision to initiate biological treatment was more strongly associated with PASI than with DLQI (the patients’ assessment of the disease impact Quality of Life).

Conclusion: These studies indicate that there are inequalities in the assignments of systemic psoriasis treatments (especially in biologic treatment). Since the allocation of treatments should not depend on sex, education or residency in a Metropolitan Area but rather the need of care, it is important that future studies continue analysing possible factors that could influence the initiation of treatment in clinical practice.

Place, publisher, year, edition, pages
Umeå: Umeå Universitet, 2016. 48 p.
Series
Umeå University medical dissertations, ISSN 0346-6612 ; 1776
Keyword
Psoriasis, Systemic treatments, Biologic treatments, PASI, DLQI, Register-based research
National Category
Dermatology and Venereal Diseases
Research subject
Dermatology and Venerology
Identifiers
urn:nbn:se:umu:diva-113894 (URN)978-91-7601-402-8 (ISBN)
Public defence
2016-01-22, Sal E04, byggnad 6E, Norrlands Universitetsjukhus, Umeå, 09:00 (Swedish)
Opponent
Supervisors
Available from: 2016-01-08 Created: 2016-01-05 Last updated: 2016-01-07Bibliographically approved

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