Cross-Cultural Adaptation and Psychometric Properties of the Traditional Chinese Version of the Italian Spine Youth Quality of Life (ISYQOL) Questionnaire.

Cheng, Ava Ying; Jim, Pik Kwan; Kwan, Ning Wai; Chan, Stephen W. W.; Cheung, Jason P. Y.; Cheung, Prudence W. H.; Negrini, Stefano; Cheung, Chelsia K. C.; Wong, Arnold Y. L.; Parent, Eric C.

The Italian Spine Youth Quality of Life (ISYQOL) is a validated health-related quality of life (HRQOL) questionnaire for teenagers with adolescent idiopathic scoliosis (AIS). We culturally-adapted ISYQOL to traditional Chinese (ISYQOL-TC) and then recruited 133 conservatively treated teenagers with AIS to complete the ISYQOL-TC and the Chinese version of the Scoliosis Research Society-22 revised (SRS-22r) questionnaire, nine-item Patient Health Questionnaire (PHQ-9), seven-item Generalized Anxiety Disorder scale (GAD-7), and numeric pain rating scale (NPRS). They repeated ISYQOL-TC two weeks later. The internal consistency, unidimensionality, and test–retest reliability were measured using the Cronbach's alpha, Rasch measurement models, and intra-class correlation coefficients (ICC3,1), respectively. The concurrent validity of the ISYQOL-TC with SRS-22r, and its construct validity with other questionnaires were evaluated using Spearman correlation coefficients. The ISYQOL-TC demonstrated good internal consistency (Cronbach's alpha 0.90 and 0.89 for items 1–13 and items 1–20), and excellent test–retest reliability (ICC3,1 = 0.95–0.96). The Rasch analysis supported the unidimensionality of all 20 items in ISYQOL-TC. The ISYQOL-TC percentage scores were positively correlated with SRS-22r total scores (r = 0.65; p < 0.05), but were negatively related to PHQ-9, GAD-7, and NPRS scores (r = −0.46 to −0.39; p < 0.01). Collectively, the ISYQOL-TC is a reliable and valid instrument for evaluating HRQOL in Chinese teenagers with AIS.

STATISTICS; STATISTICAL reliability; RESEARCH evaluation; MULTILINGUALISM; RESEARCH methodology evaluation; TRANSCULTURAL medical care; CULTURAL pluralism; PSYCHOMETRICS; CRONBACH'S alpha; MULTITRAIT multimethod techniques; QUESTIONNAIRES; SCOLIOSIS; INTRACLASS correlation; RESEARCH funding; DESCRIPTIVE statistics; DATA analysis; DATA analysis software

Healthcare (2227-9032), 2023, Vol 11, Issue 19, p2683

2227-9032

Academic Journal

10.3390/healthcare11192683