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Decision for biological treatment in real life is more strongly associated with the Psoriasis Area and Severity Index (PASI) than with the Dermatology Life Quality Index (DLQI)
Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Dermatologi och venereologi.
Umeå universitet, Samhällsvetenskapliga fakulteten, Handelshögskolan vid Umeå universitet, Statistik.ORCID-id: 0000-0003-3298-1555
Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Dermatologi och venereologi.ORCID-id: 0000-0002-3858-8474
2015 (Engelska)Ingår i: Journal of the European Academy of Dermatology and Venereology, ISSN 0926-9959, E-ISSN 1468-3083, Vol. 29, nr 3, s. 452-456Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

BACKGROUND: Following the establishment of the National Quality Registry for systemic psoriasis treatment (PsoReg), the two psoriasis outcome measurements, Psoriasis Area and Severity Index (PASI) and Dermatology Life Quality Index (DLQI), are now integrated in clinical practice in Sweden. According to current guidelines, the initiation of a biological treatment should depend on a combination of the physician's (PASI) and the patients' assessment of the disease impact on a health-related quality of life measure (DLQI).

OBJECTIVE: To evaluate if either of the two measures, PASI or DLQI, is more strongly associated with initiation of biological therapy.

METHODS: The study is based on 2216 patients suffering from moderate to severe psoriasis who were biological naïve at enrolment to PsoReg. The relationship between the two measures PASI and DLQI and initiation of biological treatment (as outcome) were estimated by a logistic regression and a Cox proportional hazard's model with combinations of PASI and DLQI as independent variables.

RESULTS: The adjusted regression models showed that patients with high PASI score and low DLQI score had a higher chance to receive biological treatment compared to patients with low PASI score and high DLQI score.

CONCLUSION: The decision to initiate biological treatment is more strongly associated with PASI than with DLQI. However, since the DLQI reflects both socio-economic costs and patient suffering better than PASI, the relevance of the DLQI may be underestimated in clinical practice.

Ort, förlag, år, upplaga, sidor
John Wiley & Sons, 2015. Vol. 29, nr 3, s. 452-456
Nationell ämneskategori
Dermatologi och venereologi
Identifikatorer
URN: urn:nbn:se:umu:diva-89800DOI: 10.1111/jdv.12576ISI: 000350039500006PubMedID: 24911993OAI: oai:DiVA.org:umu-89800DiVA, id: diva2:724153
Tillgänglig från: 2014-06-12 Skapad: 2014-06-12 Senast uppdaterad: 2018-06-07Bibliografiskt granskad
Ingår i avhandling
1. Psoriasis in Sweden: observational studies from an epidemiological perspective
Öppna denna publikation i ny flik eller fönster >>Psoriasis in Sweden: observational studies from an epidemiological perspective
2016 (Engelska)Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
Alternativ titel[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.

Ort, förlag, år, upplaga, sidor
Umeå: Umeå Universitet, 2016. s. 48
Serie
Umeå University medical dissertations, ISSN 0346-6612 ; 1776
Nyckelord
Psoriasis, Systemic treatments, Biologic treatments, PASI, DLQI, Register-based research
Nationell ämneskategori
Dermatologi och venereologi
Forskningsämne
dermatologi och venereologi
Identifikatorer
urn:nbn:se:umu:diva-113894 (URN)978-91-7601-402-8 (ISBN)
Disputation
2016-01-22, Sal E04, byggnad 6E, Norrlands Universitetsjukhus, Umeå, 09:00 (Svenska)
Opponent
Handledare
Tillgänglig från: 2016-01-08 Skapad: 2016-01-05 Senast uppdaterad: 2018-06-07Bibliografiskt granskad

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