Evidence map›Paper›PMID 39812921›Full record

ArticleJournal of patient-reported outcomes2025

Translation, cross-cultural adaptation and psychometric evaluation of the Serbian Ankylosing Spondylitis Quality of Life (ASQoL) Questionnaire (refers to r-axSpA) and its relations with disease activity and functional status indices.

Mirjana Zlatkovic-Svenda, Ana Djokic, Andjela Perunicic, Marija Zdravkovic, Slavica Pavlov Dolijanovic, Jeanette Thorpe, Dejan Dudok, Jelena Milicevic, Dejana Petrovic, Goran Radunovic

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Article in Journal of patient-reported outcomes, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

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2citing papers in PubMed
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2 citing papers in PubMed.

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5 · Who and what money

Authors and funding

10 authors.

Mirjana Zlatkovic-Svenda *Institute of Rheumatology, Belgrade, Serbia. mirjanazlatkovicsvenda@gmail.com.ORCID 0000-0002-7123-140X
Ana Djokic *Institute of Rheumatology, Belgrade, Serbia.
Andjela Perunicic *Institute of Rheumatology, Belgrade, Serbia.
Marija ZdravkovicFaculty of Medicine, University of Belgrade, Belgrade, Serbia.ORCID 0000-0003-4059-0263
Slavica Pavlov DolijanovicInstitute of Rheumatology, Belgrade, Serbia.ORCID 0009-0005-5683-2193
Jeanette ThorpeGalen Research Ltd, Manchester, UK.ORCID 0000-0002-9168-5716
Dejan DudokInstitute of Rheumatology, Belgrade, Serbia.
Jelena MilicevicGeneral Hospital Pozega, Health Center Uzice, Uzice, Serbia.
Dejana PetrovicHealth Center Rakovica, Belgrade, Serbia.
Goran RadunovicInstitute of Rheumatology, Belgrade, Serbia.ORCID 0000-0002-4449-8969

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo translate, cross-culturally adapt and validate the Serbian Ankylosing Spondylitis Quality of Life (ASQoL) questionnaire, e.g. according to the new nomenclature Radiographic-Axial Spondyloarthritis (r-axSpA), and to relate it to disease activity and functional status domains.

methodsFour stages were accomplished: (1) Bilingual and lay panel for translation and cross-cultural adaptation (2) Cognitive debriefing interviews (assessing the language and cultural equivalence of the concepts used in the Serbian ASQoL translation) for face and content validity (3) Psychometric evaluation: (a) convergent validity by NHP as a comparator scale and (b) known group validity by correlations with disease activity and overall health status and reliability (internal consistency and test-retest reliability) (4) Independent regression analyses for relations between ASQoL and ASDAS, BASDAI, BASFI, Schober's test, respiratory index and SPARCC were used. The statistical program SPSS (version 21; IBM, Armonk, NY, USA) was used.

resultsThe bilingual panel made a unified version of the translated documents, a lay panel confirmed the clarity of the questionnaire. Cognitive debriefing interviews with 10 patients evaluated the Serbian ASQoL as clear, precise, easy to complete. The psychometric properties with 60 randomly selected patients showed good convergent validity between ASQoL and NHP domains of pain (r = 0.79), emotional reactions (r = 0.78), physical activity (r = 0.77) and energy (r = 0.75). The internal reliability was 0.95 and 0.91 (1st and 2nd administration), respectively, and the test-retest reliability was 0.84. Regression analyses showed highly significant relationships (p < 0.001) between ASQoL and ASDAS (R²=0.403), BASDAI (R²=0.564) and BASFI (R²=0.444).

conclusionThe Serbian ASQoL demonstrated good psychometric properties and significant relationships with disease activity and functional status and is recommended for quality of life assessment in Serbian-speaking ankylosing spondylitis (radiographic axial spondyloarthritis) patients, both in clinical practice and clinical research.

Indexed as

Quality of LifeSpondylitis, AnkylosingAdultCross-Cultural ComparisonFemaleFunctional StatusHumansMaleMiddle AgedPsychometricsReproducibility of ResultsSerbiaSeverity of Illness IndexSurveys and QuestionnairesTranslatingTranslationsAnkylosing spondylitisASQoLCross-cultural adaptationPsychometric evaluationQuality of lifeRadiographic axial spondyloarthritisValidation

Identifiers

PMID39812921
PMCPMC11735697

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.