caa a22 4500 606211047 CHVBK 20210128101036.0 cr unu---uuuuu 210128e20151201xx s 000 0 eng 10.1007/s10926-015-9579-0 doi (NATIONALLICENCE)springer-10.1007/s10926-015-9579-0 Confirmatory Factor Analysis of the Boston Carpal Tunnel Questionnaire [Elektronische Daten] [Yi-Jing Lue, Yuh-Yih Wu, Ya-Fen Liu, Gau-Tyan Lin, Yen-Mou Lu] Purpose Carpal tunnel syndrome (CTS) is one of the most common hand problems and a major cause of work disability. The purpose of this study was to use confirmatory factor analysis (CFA) to assess the factor structure of the Boston Carpal Tunnel Questionnaire (BCTQ) in patients with CTS. Methods One hundred and twenty-three patients with CTS were recruited from two hospitals. Each patient completed the functional status scale and the symptom severity scale of the BCTQ. CFA was used to assess the model fit between the data and pre-established theoretical measurement models. Results CFA showed that all three-factor models were better than the original two-factor model. Among the three-factor models, the simplified model, with 11 items assessing daytime pain, nocturnal numbness/tingling, and hand function was the best, for the model fit the data better than did the other models. Specifically, the Comparative Indices were larger than 0.95 (Tucker-Lewis Index and Comparative Fit Index values), and the Absolute Fit Indices and information-theoretic measures were the smallest. Moreover, all factor loadings were significant and high in magnitude (ranging from 0.66 to 0.99), the composite reliabilities exceeded 0.60 (ranging from 0.78 to 0.94), and the average variance extracted exceeded 0.50 (ranging from 0.61 to 0.89). Conclusion The simplified model showed the highest reliability and validity, and the factor structure was the simplest/clearest one. The simplified model is recommended for clinical use due to its convenience and precision for assessing the problems of patients with CTS. Springer Science+Business Media New York, 2015 Carpal tunnel syndrome nationallicence Confirmatory factor analysis nationallicence Construct validation nationallicence Reliability nationallicence Model selection nationallicence Lue Yi-Jing Department of Physical Therapy, College of Health Sciences, Kaohsiung Medical University, Kaohsiung, Taiwan aut Wu Yuh-Yih Department of Special Education, National Kaohsiung Normal University, Kaohsiung, Taiwan aut Liu Ya-Fen Department of Physical Medicine and Rehabilitation, Kaohsiung Municipal Hsiao-Kang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan aut Lin Gau-Tyan Department of Orthopaedics, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan aut Lu Yen-Mou Department of Orthopaedics, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan aut Journal of Occupational Rehabilitation Springer US; http://www.springer-ny.com 25/4(2015-12-01), 717-724 1053-0487 25:4<717 2015 25 10926 https://doi.org/10.1007/s10926-015-9579-0 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10926-015-9579-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lue Yi-Jing Department of Physical Therapy, College of Health Sciences, Kaohsiung Medical University, Kaohsiung, Taiwan aut NATIONALLICENCE 700 1- Wu Yuh-Yih Department of Special Education, National Kaohsiung Normal University, Kaohsiung, Taiwan aut NATIONALLICENCE 700 1- Liu Ya-Fen Department of Physical Medicine and Rehabilitation, Kaohsiung Municipal Hsiao-Kang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan aut NATIONALLICENCE 700 1- Lin Gau-Tyan Department of Orthopaedics, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan aut NATIONALLICENCE 700 1- Lu Yen-Mou Department of Orthopaedics, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan aut NATIONALLICENCE 773 0- Journal of Occupational Rehabilitation Springer US; http://www.springer-ny.com 25/4(2015-12-01), 717-724 1053-0487 25:4<717 2015 25 10926