Department of Epidemiology and Public Health, University College London, London, UK.
Patient Educ Couns. 2012 Oct;89(1):116-21. doi: 10.1016/j.pec.2012.05.007. Epub 2012 Jun 16.
To examine public perceptions of and preferences for colonoscopy vs. CT colonography (CTC) as technologies for colorectal cancer (CRC) screening.
Six discussion groups were carried out with 30 adults aged 49-60 years (60% female). Information about different aspects of the tests (e.g. sensitivity, practical issues) was presented sequentially using a semi-structured, step-by-step topic guide. Discussions were recorded and analyzed using framework analysis.
CTC was favored on the parameters of invasiveness, extra-colonic evaluation and interference with daily life, whereas sensitivity, avoiding false-positives and the capacity to remove polyps immediately were perceived to be important advantages of colonoscopy. Ultimately, there was no strong preference for either test: with 46% preferring colonoscopy vs. 42% for CTC.
With comprehensive information, colonoscopy and CTC were seen as having different advantages and disadvantages, yielding no clear preferences between the two. The sensitivity of colonoscopy was a decisive factor for some people, but the lower invasiveness of CTC was seen as an asset in the screening context.
CTC may be an acceptable alternative to colonoscopy in CRC screening. Healthcare professionals working in the screening context should be sensitive to the range of characteristics that can determine preferences for CRC screening tests.
调查公众对结肠镜检查与 CT 结肠成像（CTC）作为结直肠癌（CRC）筛查技术的看法和偏好。
对 30 名年龄在 49-60 岁的成年人（60%为女性）进行了 6 组讨论。使用半结构化、逐步的主题指南，依次介绍了关于检查的不同方面的信息（例如，敏感性、实际问题）。使用框架分析对讨论进行记录和分析。
CTC 在侵入性、结肠外评估和对日常生活的干扰方面受到青睐，而结肠镜检查的敏感性、避免假阳性和立即切除息肉的能力被认为是其重要优势。最终，两种检查方法均未受到强烈偏好：46%的人更喜欢结肠镜检查，42%的人更喜欢 CTC。
在提供全面信息的情况下，结肠镜检查和 CTC 被认为具有不同的优缺点，因此两者之间没有明显的偏好。结肠镜检查的敏感性对一些人来说是一个决定性因素，但 CTC 的低侵入性在筛查背景下被视为优势。
在 CRC 筛查中，CTC 可能是结肠镜检查的一种可接受的替代方法。在筛查环境中工作的医疗保健专业人员应注意可能决定 CRC 筛查测试偏好的一系列特征。
