Department of Social Work, Faculty of Arts and Social Sciences, National University of Singapore, Singapore.
Ann Acad Med Singap. 2020 May;49(5):294-305.
Although the EQ-5D questionnaire is widely used to measure health status internationally, there is little evidence of its content validity in Asian populations. This qualitative study aimed to explore the content validity of the EQ-5D in Singapore.
Sixty Singaporeans (Chinese: 20; Malay: 20; Indian: 20) completed semi-structured interviews in which they were asked about health concepts which were important to them and the relevance and comprehensiveness of the EQ-5D descriptive system (DS). Thematic analysis employing open, focused and axial coding was used to identify the themes and subthemes from the interviews.
A total of 70 health concepts were identified which fall into the broad categories of 'physical health', 'mental well-being', 'social relationships', 'medical conditions and treatment', and 'health promotion knowledge and behaviours'. The 5 dimensions in the EQ-5D DS were among the health concepts nominated by participants. Some participants suggested that content validity could be improved by adding social relationships, medical conditions and treatment, and health promotion knowledge and behaviours to the EQ-5D DS.
This study confirmed that EQ-5D dimensions are important and relevant aspects of health to Asians in Singapore, although some dimensions that could be important to Singaporeans are absent.
尽管 EQ-5D 问卷在国际上被广泛用于衡量健康状况，但在亚洲人群中，其内容效度的证据很少。本定性研究旨在探讨 EQ-5D 在新加坡的内容效度。
60 名新加坡人（华人：20；马来人：20；印度人：20）完成了半结构化访谈，询问他们对他们认为重要的健康概念，以及 EQ-5D 描述性系统（DS）的相关性和全面性。采用开放式、聚焦式和轴向式编码的主题分析，从访谈中确定主题和子主题。
共确定了 70 个健康概念，分为“身体健康”、“心理健康”、“社会关系”、“医疗状况和治疗”以及“健康促进知识和行为”等广泛类别。EQ-5D DS 中的 5 个维度是参与者提名的健康概念之一。一些参与者建议，通过在 EQ-5D DS 中添加社会关系、医疗状况和治疗以及健康促进知识和行为，可以提高内容效度。
本研究证实，EQ-5D 维度是新加坡亚洲人健康的重要和相关方面，尽管新加坡人可能认为某些维度很重要，但这些维度却缺失了。
