Carlos King Ho Wong1, Prudence Wing Hang Cheung2, Nan Luo3, Jason Pui Yin Cheung4. 1. Department of Family Medicine and Primary Care, The University of Hong Kong, Rm 1-01, 1/F, Jockey Club Building for Interdisciplinary Research, 5 Sassoon Road, Pokfulam, Hong Kong SAR, China. carlosho@hku.hk. 2. Department of Orthopaedics and Traumatology, The University of Hong Kong, 5/F Professorial Block, Queen Mary Hospital, Pokfulam, Hong Kong SAR, China. 3. Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore. 4. Department of Orthopaedics and Traumatology, The University of Hong Kong, 5/F Professorial Block, Queen Mary Hospital, Pokfulam, Hong Kong SAR, China. cheungjp@hku.hk.
Abstract
PURPOSE: The aim of this study was to assess the psychometric properties of a youth version of the EQ-5D five-level questionnaire (5LY) and its three-level version (3LY) in a sample of Chinese paediatric patients. METHODS: A consecutive sample of idiopathic scoliosis patients were recruited from a referral outpatient scoliosis center at Hong Kong, China in October 2017 and completed the two versions of EQ-5D-Y. Redistribution properties in each dimension of EQ-5D-Y were analyzed between 5LY and 3LY by logistics regressions. Absolute reduction and relative reduction in ceiling effects from the 3LY to the 5LY were calculated. Test-retest reliability was assessed by examining the Gwet's agreement coefficient (Gwet's AC) for five individual dimension responses over the 2-week period. RESULTS: A total of 129 idiopathic scoliosis patients completed the two versions of EQ-5D-Y at baseline assessment, among which 70 patients completed the test-retest interview in 2-3 weeks after baseline assessment. For redistribution properties, the proportion of inconsistency was low in all the dimensions, ranging from 0.0% ("Usual activities") to 3.9% ("Pain/discomfort"). Ceiling effects were reduced in four dimensions. "Usual activities" dimension showed significant reduction (absolute and relative reductions: 3.9% and 4.3%; p = 0.025) and the "worried/sad/unhappy" dimension showed the largest significant reduction in ceiling effects (absolute and relative reductions: 7.8% and 9.8%; p = 0.012). The 3LY and 5LY showed very good agreement (> 80%) of individual dimension responses between two assessments, except for the "worried/sad/unhappy" dimension in 3LY. CONCLUSION: Through this head-to-head comparison, the 5LY had significant improvements in ceiling effects in two dimensions when compared to 3LY but other measurement properties of 3LY and 5LY performed similar in the idiopathic scoliosis patient group.
PURPOSE: The aim of this study was to assess the psychometric properties of a youth version of the EQ-5D five-level questionnaire (5LY) and its three-level version (3LY) in a sample of Chinese paediatric patients. METHODS: A consecutive sample of idiopathic scoliosispatients were recruited from a referral outpatientscoliosis center at Hong Kong, China in October 2017 and completed the two versions of EQ-5D-Y. Redistribution properties in each dimension of EQ-5D-Y were analyzed between 5LY and 3LY by logistics regressions. Absolute reduction and relative reduction in ceiling effects from the 3LY to the 5LY were calculated. Test-retest reliability was assessed by examining the Gwet's agreement coefficient (Gwet's AC) for five individual dimension responses over the 2-week period. RESULTS: A total of 129 idiopathic scoliosispatients completed the two versions of EQ-5D-Y at baseline assessment, among which 70 patients completed the test-retest interview in 2-3 weeks after baseline assessment. For redistribution properties, the proportion of inconsistency was low in all the dimensions, ranging from 0.0% ("Usual activities") to 3.9% ("Pain/discomfort"). Ceiling effects were reduced in four dimensions. "Usual activities" dimension showed significant reduction (absolute and relative reductions: 3.9% and 4.3%; p = 0.025) and the "worried/sad/unhappy" dimension showed the largest significant reduction in ceiling effects (absolute and relative reductions: 7.8% and 9.8%; p = 0.012). The 3LY and 5LY showed very good agreement (> 80%) of individual dimension responses between two assessments, except for the "worried/sad/unhappy" dimension in 3LY. CONCLUSION: Through this head-to-head comparison, the 5LY had significant improvements in ceiling effects in two dimensions when compared to 3LY but other measurement properties of 3LY and 5LY performed similar in the idiopathic scoliosispatient group.
Authors: N Devlin; T Pan; S Kreimeier; J Verstraete; E Stolk; K Rand; M Herdman Journal: Health Qual Life Outcomes Date: 2022-07-06 Impact factor: 3.077
Authors: Carlos K H Wong; Rosa S Wong; Jason P Y Cheung; Keith T S Tung; Jason C S Yam; Michael Rich; King-Wa Fu; Prudence W H Cheung; Nan Luo; Chi Ho Au; Ada Zhang; Wilfred H S Wong; Jiang Fan; Cindy L K Lam; Patrick Ip Journal: Health Qual Life Outcomes Date: 2021-05-12 Impact factor: 3.186
Authors: Helen Hoi Lun Tsang; Jason Pui Yin Cheung; Carlos King Ho Wong; Prudence Wing Hang Cheung; Chak Sing Lau; Ho Yin Chung Journal: BMC Musculoskelet Disord Date: 2021-05-14 Impact factor: 2.362
Authors: Mimmi Åström; Sonja Krig; Sara Ryding; Neil Cleland; Ola Rolfson; Kristina Burström Journal: Health Qual Life Outcomes Date: 2020-06-03 Impact factor: 3.186