Measuring Quality of Life in Adults with Scoliosis: A Cross-Sectional Study Comparing SRS-22 and ISYQOL Questionnaires
Articolo
Data di Pubblicazione:
2023
Citazione:
Measuring Quality of Life in Adults with Scoliosis: A Cross-Sectional Study Comparing SRS-22 and ISYQOL Questionnaires / F. Zaina, I. Ferrario, A. Caronni, S. Scarano, S. Donzelli, S. Negrini. - In: JOURNAL OF CLINICAL MEDICINE. - ISSN 2077-0383. - 12:15(2023 Aug 01), pp. 5071.1-5071.21. [10.3390/jcm12155071]
Abstract:
Idiopathic scoliosis is common in adulthood and can impact patients' physical and psychological health. The Scoliosis Research Society-22 Questionnaire (SRS-22) has been designed to assess health-related quality of life (HRQOL) in idiopathic scoliosis, and it is the most used disease-specific outcome tool from adolescence to adulthood. More recently, the Italian Spine Youth Quality of Life (ISYQOL) international questionnaire was developed, which performs better than SRS-22 in adolescent spinal deformities. However, the ISYQOL questionnaire has never been tested in adults. This study compares the construct validity of ISYQOL and SRS-22 with the Rasch analysis (partial credit model). We recruited 150 adults and 50 adolescents with scoliosis (& GE;30 & DEG; Cobb). SRS-22, but not ISQYOL, showed disordered categories and one item not fitting the Rasch model. A 21-item SRS-22 version with revised categories was arranged and further compared to ISYQOL. Both questionnaires showed multidimensionality, and some items (SRS-22 in a greater number) functioned differently in persons of different ages. However, the artefacts caused by multidimensionality and differential functioning had a low impact on the questionnaires' measures. The construct validity of ISYQOL International and the revised SRS-22 are comparable. Both questionnaires (but not the original SRS-22) can return measures of disease burden in adults with scoliosis.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
adult scoliosis; psychometrics; quality of life; rasch analysis
Elenco autori:
F. Zaina, I. Ferrario, A. Caronni, S. Scarano, S. Donzelli, S. Negrini
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