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Translation and validation of the Turkish version of the Ankylosing Spondylitis Quality of Life (ASQOL) questionnaire

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Abstract

The Ankylosing Spondylitis Quality of Life (ASQoL) questionnaire is a disease-specific measure of needs-based quality of life developed in the UK and the Netherlands. This study describes translation, validation, and reliability of the scale into Turkish population. The ASQoL was translated into Turkish using the dual-panel process. Content validity was assessed via cognitive debriefing interviews with ankylosing spondylitis (AS) patients. Patients with AS according to modified New York criteria were recruited into the study from 12 hospitals of all part of Turkey. Psychometric and scaling properties were assessed via a two administration survey involving the ASQoL, the Nottingham Health Profile (NHP), Bath AS Functional Index (BASFI), and Bath AS Disease Activity Index (BASDAI). Classical psychometrics assessed reliability, convergent validity (correlation of ASQoL with NHP, BASFI, and BASDAI) and discriminative validity (correlation of ASQoL with perceived AS-severity and general health). Cognitive debriefing showed the new Turkish ASQoL to be clear, relevant, and comprehensive. Completed survey questionnaires were received from 277 AS patients (80 % Male, mean age 42.2/SD 11.6, mean AS duration 9.4 years/SD 9.4). Test–retest reliability was excellent (0.96), indicating low random measurement error for the scale. Correlations of ASQoL with NHP sections were low to moderate (NHP Sleep 0.34; NHP Emotional Reactions 0.83) suggesting the measures assess related but distinct constructs. The measure was able to discriminate between patients based on their perceived disease severity (p < 0.0001) and self-reported general health (p < 0.0001). The Turkish version of ASQoL has good reliability and validity properties. It is practical and useful scale to assess the quality of life in AS patients in Turkish population.

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The authors declare that they have no conflict of interest.

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Correspondence to Y. Turan.

Appendix

Appendix

Turkish version of ASQOL

Lütfen her ifadeyi dikkatlice okuyunuz. Eğer ifade sizin durumunuza uygunsa “Evet”, uygun değilse “Hayır” seçeneğini işaretleyiniz. Lütfen her soruyu dikkatlice okuyunuz ve sizin şu anki durumunuza en uygun olan tek seçeneği işaretleyiniz.

 

Evet

Hayır

1. Hastalığım gidebileceğim yerleri kısıtlıyor

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2. Bazen içimden ağlamak geliyor

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3. Giyinmede zorluk çekiyorum

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4. Evdeki işleri yapmakta zorlanıyorum

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5. Hastalığımdan dolayı uyumak imkansız

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6. Ailem veya arkadaşlarımla birlikte etkinliklere katılmam çok zor oluyor

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7. Her zaman yorgunum

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8. Bir iş yaparken dinlenmek için sık sık ara veriyorum

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9. Dayanılmaz ağrım var

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10. Sabahları kendimi toparlayıp güne başlamam uzun süre alıyor

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11. Evdeki işleri yapmam imkansız

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12. Kolayca yoruluyorum

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13. Kendimi sık sık engellenmiş ve çaresiz hissediyorum

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14. Her zaman ağrım var

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15. Hastalığımdan dolayı çok şey kaçırdığımı hissediyorum

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16. Saçımı yıkamakta zorlanıyorum

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17. Hastalığım moralimi bozuyor

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18. Hastalığımın başkalarının planlarını bozmasından endişe ediyorum

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Toplam: I__I__I

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Duruöz, M.T., Doward, L., Turan, Y. et al. Translation and validation of the Turkish version of the Ankylosing Spondylitis Quality of Life (ASQOL) questionnaire. Rheumatol Int 33, 2717–2722 (2013). https://doi.org/10.1007/s00296-013-2796-y

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  • DOI: https://doi.org/10.1007/s00296-013-2796-y

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