Psoriatic Arthritis Quality of Life
The Psoriatic Arthritis Quality of Life (PsAQoL) measure is a disease specific patient-reported outcome measure which measures the effect that psoriatic arthritis has on a patient’s quality of life.[1]
It is a self-administered, 20-item questionnaire that takes about three minutes to complete.[2] The answers are restricted to true or false.[3]
Development[edit | edit source]
The PsAQoL was first published in 2004 by Galen Research. The development of the measure was a joint effort between Galen Research, the University of Leeds and St. Vincent’s University Hospital in Dublin. The study was funded by the Arthritis Research Campaign in the UK.[2]
Qualitative interviews were conducted with 48 patients, after which a 51-item questionnaire was created. A follow up survey with 94 patients was then conducted which reduced the items to 35. An additional 286 patients were surveyed and Rasch analysis was performed, which finalized the PsAQoL to 20 items.[4] A high score on the PsAQoL indicates a lower quality of life.
International Use[edit | edit source]
The Psoriatic Arthritis Quality of Life measure has been translated into 30 languages, other than UK English.[5] These languages include Dutch[6] and Swedish.[7] The PsAQoL has also been utilized in clinical research studies in order to determine whether a medication or treatment is effective in treating psoriatic arthritis. If the scores on the PsAQoL change after treatment, this means that the given treatment has had an effect on quality of life. The PsAQoL has been used to evaluate infliximab[8] and adalimumab.[9]
References[edit | edit source]
- ↑ Brodszky, V, Comparison of the Psoriatic Arthritis Quality of Life (PsAQoL) questionnaire, the functional status (HAQ) and utility (EQ-5D) measures in psoriatic arthritis: results from a cross-sectional survey, Scandinavian Journal of Rheumatology, Vol. 39(Issue: 4), pp. 303–309, DOI: 10.3109/03009740903468982, PMID: 20166848,
- ↑ 2.0 2.1 McKenna, S, Development of the PsAQoL: a quality of life instrument specific to psoriatic arthritis, Annals of the Rheumatic Diseases, Vol. 63(Issue: 2), pp. 162–169, DOI: 10.1136/ard.2003.006296, PMID: 14722205, PMC: 1754880,
- ↑ Roussou, Euthalia, Phenotypic and clinical differences between Caucasian and South Asian patients with psoriatic arthritis living in North East London, Clinical Rheumatology, 2013, Vol. 32(Issue: 5), pp. 591–599, DOI: 10.1007/s10067-012-2139-5, PMID: 23247553,
- ↑ Mease, Philip J., Measures of Psoriatic Arthritis, Arthritis Care & Research, Vol. 63(Issue: S11), pp. S64–S85, DOI: 10.1002/acr.20577, PMID: 22588772,
- ↑ Measures Database Full text, , Galen Research,
- ↑ Wink, Freke, Validity and Reliability of the Dutch Adaptation of the Psoriatic Arthritis Quality of Life (PsAQoL) Questionnaire, PLoS ONE, 2013, Vol. 8(Issue: 2), pp. e55912, DOI: 10.1371/journal.pone.0055912, PMID: 23418474, PMC: 3572180,
- ↑ Billing, E, Adaptation of the Psoriatic Arthritis Quality of Life (PsAQoL) instrument for Sweden, Scandinavian Journal of Rheumatology, Vol. 39(Issue: 3), pp. 223–228, DOI: 10.3109/03009740903347975, PMID: 20063984,
- ↑ Marzo-Ortega, Helena, Efficacy of infliximab on MRI-determined bone oedema in psoriatic arthritis, Annals of the Rheumatic Diseases, 2007, Vol. 66(Issue: 6), pp. 778–781, DOI: 10.1136/ard.2006.063818, PMID: 17185324, PMC: 1954680, Full text,
- ↑ A Canadian Open-Label Study to Evaluate the Safety and Effectiveness of Adalimumab When Added to Inadequate Therapy for the Treatment of Psoriatic Arthritis (PsA) (ACCLAIM) Full text, , Abbott,
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