Verpe Ida Skovborg, Thygesen Katrine Baltzer, Escorpizo Reuben, Mortensen Ole Steen, Korshøj Mette
Department of Occupational and Social Medicine, Holbæk Hospital, Part of Copenhagen University Hospital, Holbæk, Denmark.
Department of Rehabilitation and Movement Science, College of Nursing and Health Sciences, University of Vermont, Burlington, VT, United States.
Front Rehabil Sci. 2023 Apr 24;4:1115981. doi: 10.3389/fresc.2023.1115981. eCollection 2023.
The aim of this study was to examine the construct validity of the Danish version of the Work Rehabilitation Questionnaire (WORQ) and to compare the physical capacity items of WORQ to objective, standardized measures of physical capacity and selected SF-36 physical items.
The study took place at a job center in Holbæk municipality, and 40 clients of working age were enrolled. Participants completed the interviewer-administered version of WORQ, selected SF-36 items, and underwent objective, physical capacity testing, including a 30-s sit-to-stand-test, a hand-grip-strength test, and a 6-min walk test to estimate cardiorespiratory fitness. Correlations between variables were assessed using Spearman's correlation. Further, cross tabulations and chi-square tests were conducted, and sensitivity, specificity, positive predictive values (PPVs), and negative predictive values (NPVs) were calculated.
We found a moderate to strong correlation between WORQ and SF-36 items and a weak to moderate correlation between physical capacity items of WORQ and objectively tested physical capacity measures. On the basis of cross tabulations, calculations yielded overall higher NPVs than PPVs, whereas sensitivity and specificity varied more, with not one parameter being overall better than the other.
We found evidence of construct validity of the WORQ-Danish. However, our study might also raise a question as to whether objective physical capacity tests are the gold standard for evaluating functioning. Our results are promising, and we suggest further investigations of the screening capabilities of WORQ, alongside other legacy measures or instruments, both self-reported and objective physical measures, to complement information-where specific answers to specific questions trigger work-related actions or interventions.
本研究旨在检验丹麦版工作康复问卷（WORQ）的结构效度，并将WORQ的身体能力项目与客观、标准化的身体能力测量方法以及选定的SF-36身体项目进行比较。
该研究在霍尔拜克市的一个就业中心进行，招募了40名工作年龄的客户。参与者完成了由访谈员施测的WORQ版本、选定的SF-36项目，并接受了客观的身体能力测试，包括30秒坐立测试、握力测试和6分钟步行测试以评估心肺适能。使用Spearman相关性评估变量之间的相关性。此外，进行了交叉表分析和卡方检验，并计算了敏感性、特异性、阳性预测值（PPV）和阴性预测值（NPV）。
我们发现WORQ与SF-36项目之间存在中度至强相关性，WORQ的身体能力项目与客观测试的身体能力测量方法之间存在弱至中度相关性。基于交叉表分析，计算得出的总体NPV高于PPV，而敏感性和特异性变化更大，没有一个参数在总体上优于另一个参数。
我们发现了丹麦版WORQ结构效度的证据。然而，我们的研究也可能引发一个问题，即客观的身体能力测试是否是评估功能的金标准。我们的结果很有前景，我们建议进一步研究WORQ的筛查能力，以及其他传统测量方法或工具，包括自我报告和客观身体测量方法，以补充信息——在特定问题的特定答案引发与工作相关的行动或干预时。
