Department of Physical Medicine and rehabilitation, Oslo University Hospital, Oslo, Norway.
Department of Rehabilitation Science and Health Technology, Faculty of Health Sciences, Oslo Metropolitan University, Pilestredet 44, Oslo, 0167, Norway.
BMC Musculoskelet Disord. 2023 Sep 29;24(1):769. doi: 10.1186/s12891-023-06901-0.
Greater Trochanteric Pain Syndrome (GTPS) is a common chronic musculoskeletal condition that may affect physical function, quality of life and sleep. The Victorian Institute of Sport Assessment-Gluteal questionnaire (VISA-G) has been developed as a Patient-Reported Outcome Measurement (PROM) to address pain, everyday activities, physical activities, and difficulty with weight bearing activities. The aim of the study was to test the reliability, validity and floor and ceiling effects of the Norwegian version of the VISA-G (VISA-G-Norwegian) in a population with GTPS in a specialist health care setting.
This psychometric evaluation of the VISA-G-Norwegian questionnaire were conducted with a prospective observational design. The VISA-G was translated into Norwegian following recommended guidelines. A subgroup repeated the VISA-G-Norwegian a week after the initial submission. For the reliability, the Intraclass Correlation Coefficient (ICC), Standard Error of the Measurement (SEM) and the Smallest Detectable Change (SDC) were calculated. Internal consistency was measured using a Cronbach´s alpha. Floor and ceiling effects were evaluated, and construct validity was assessed with three a priori hypotheses.
78 participants were included in the study of which 47 stable participants undertook the test-retest reliability arm of the study. The ICC for the total score was 0.85 (95% CI 0.68, 0.92), SEM was 6.6 points and SDC 18.4 points. Cronbach`s alpha was 0.77 (95% CI 0.69, 0.84). No floor or ceiling effects were found in the total score, but ceiling effect was found in three of the eight items. For construct validity, one of the three hypotheses were confirmed. VISA-G-Norwegian correlated to the modified Harris Hip Score (mHHS), Oswestry Disability Questionnaire (ODI) and Numeric Pain Rating Scale (NPRS), 0.64, -0.75 and - 0.63 respectively.
The VISA-G-Norwegian has acceptable reliability and validity, despite ceiling effect of individual items. The large SDC should be considered when measuring change in similar cohorts with GTPS. For a potential future version, it would be recommended to consider response options for questions with ceiling effect and the comprehensibility of question eight.
Registered at ClinicalTrials.gov the 28/02/2020 (NCT04289922).
大转子疼痛综合征（GTPS）是一种常见的慢性肌肉骨骼疾病，可能会影响身体功能、生活质量和睡眠。维多利亚运动研究所评估-臀肌问卷（VISA-G）已作为一种患者报告的结果测量（PROM）被开发出来，用于评估疼痛、日常活动、体育活动以及负重活动的困难程度。本研究的目的是在专门的医疗保健环境中，测试 GTPS 人群中 VISA-G 的挪威版本（VISA-G-Norwegian）的可靠性、有效性和地板效应和天花板效应。
按照建议的指南，将 VISA-G-Norwegian 翻译成挪威语。采用前瞻性观察设计对 VISA-G-Norwegian 问卷进行心理测量评估。对于可靠性，计算了组内相关系数（ICC）、测量标准误差（SEM）和最小可检测变化（SDC）。使用 Cronbach's alpha 测量内部一致性。评估地板效应和天花板效应，并根据三个先验假设评估结构有效性。
共有 78 名参与者参加了研究，其中 47 名稳定参与者参加了测试-重测可靠性部分的研究。总分的 ICC 为 0.85（95%CI 0.68，0.92），SEM 为 6.6 分，SDC 为 18.4 分。Cronbach's alpha 为 0.77（95%CI 0.69，0.84）。在总分中未发现地板效应或天花板效应，但在八个项目中有三个项目发现了天花板效应。对于结构有效性，三个假设中的一个得到了证实。VISA-G-Norwegian 与改良 Harris 髋关节评分（mHHS）、Oswestry 残疾问卷（ODI）和数字疼痛评分量表（NPRS）相关，分别为 0.64、-0.75 和-0.63。
尽管个别项目存在天花板效应，但 VISA-G-Norwegian 具有可接受的可靠性和有效性。在具有 GTPS 的类似队列中测量变化时，应考虑较大的 SDC。对于潜在的未来版本，建议考虑对存在天花板效应的问题的反应选项和问题 8 的可理解性。
于 2020 年 2 月 28 日在 ClinicalTrials.gov 注册（NCT04289922）。
