Relevant knowledge is essential for informed choices about (non)participation in population-based cancer screening. Many instruments have been proposed to assess residents' knowledge about cancer screening programmes but their measurement properties are unknown. This systematic review aims to identify and critically evaluate the measurement properties of instruments to measure knowledge about cancer screening in individuals eligible for population-based screening. A literature search was undertaken in PubMed, PsycINFO, Embase, CINAHL, Scopus and Web of Science in August 2023. The review included any study reporting one or more measurement properties of the questionnaire or sub-scale used measuring knowledge of cancer screening including breast, colorectal and/or cervical cancer screening. Studies including males aged 45 or older and females aged 20 or older were included. Two independent reviewers screened the articles and assessed the included articles using the COnsensus-based Standards for the selection of health Measurement Instruments (COSMIN). We included 24 instruments, which varied in number and characteristics of items. All instruments were assessed as having an inadequate instrument development. The results of structural validity, internal consistency, criterion validity and reliability were assessed as indeterminate, while construct validity and responsiveness were assessed as sufficient. This systematic review identified no instruments to measure knowledge about cancer screening where the measurement properties were sufficiently evaluated. There is a lack of focus on content validity and structural validity, and further validation of the instruments is needed. The results indicate a lack of shared understanding or agreement of what constitutes relevant knowledge about cancer screening.

中文翻译：

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针对平均风险个体的人群癌症筛查知识衡量工具的有效性——系统评价

相关知识对于做出有关（不）参与基于人群的癌症筛查的知情选择至关重要。人们提出了许多工具来评估居民对癌症筛查计划的了解，但它们的测量特性尚不清楚。本系统综述旨在确定并严格评估仪器的测量特性，以测量符合人群筛查资格的个体的癌症筛查知识。 2023 年 8 月，在 PubMed、PsycINFO、Embase、CINAHL、Scopus 和 Web of Science 上进行了文献检索。该综述包括任何报告用于测量癌症筛查知识的问卷或子量表的一项或多项测量属性的研究，包括乳腺癌、结直肠癌和/或宫颈癌筛查。研究对象包括 45 岁或以上的男性和 20 岁或以上的女性。两名独立审稿人筛选了这些文章，并使用基于共识的健康测量仪器选择标准 (COSMIN) 评估了纳入的文章。我们收录了 24 种乐器，它们的数量和特性各不相同。所有仪器均被评估为仪器开发不足。结构效度、内部一致性、标准效度和信度的结果被评估为不确定，而结构效度和反应性的结果被评估为充分。这项系统评价没有发现任何测量癌症筛查知识的工具，其中的测量特性得到了充分的评估。缺乏对内容有效性和结构有效性的关注，需要对工具进行进一步验证。结果表明，对于癌症筛查相关知识的构成缺乏共识或共识。