RTI International, 3040 Cornwallis Road, Research Triangle Park, NC 27709, USA.
Health Serv Res. 2011 Aug;46(4):1200-23. doi: 10.1111/j.1475-6773.2011.01248.x. Epub 2011 Feb 25.
To examine the effects of a community-based intervention on decisions about prostate-specific antigen (PSA) screening using multiple measures of informed decision making (IDM).
DATA SOURCES/STUDY SETTING: Nonequivalent control group time series design collecting primary data in late 2004 and 2005.
We developed a multimodal intervention designed to convey the medical uncertainty about the benefits of PSA screening and early treatment and the limited predictive ability of both the PSA test and pathological specimens collected from prostate biopsy. We examined (1) patients' recognition that there is a decision to be made about PSA screening, (2) prostate cancer knowledge levels, (3) their preferred and actual levels of participation in decision making about screening at three points in time, and (4) screening decision.
Baseline data collection occurred in community-based organizations. These organizations served as recruiting sources and as sites for the intervention. We collected follow-up data by mail with telephone reminders.
Our intervention was associated with greater recognition of the PSA test as a decision to be made, levels of knowledge, both preferred and actual levels of involvement in decision making, but did not have an impact on the screening decision.
Community-based interventions can influence key measures of IDM about PSA screening.
使用多种知情决策（IDM）测量方法，研究基于社区的干预对前列腺特异性抗原（PSA）筛查决策的影响。
数据来源/研究设置：在 2004 年底和 2005 年收集原始数据的非等效对照组时间序列设计。
我们开发了一种多模式干预措施，旨在传达关于 PSA 筛查和早期治疗益处的医学不确定性，以及 PSA 测试和前列腺活检中收集的病理标本的预测能力均有限。我们检查了（1）患者对 PSA 筛查做出决策的认识，（2）前列腺癌知识水平，（3）他们在三个时间点对筛查做出决策的首选和实际参与程度，以及（4）筛查决策。
基线数据收集在社区组织中进行。这些组织既是招募来源，也是干预的场所。我们通过邮件收集随访数据，并通过电话提醒。
我们的干预措施与对 PSA 测试作为要做出的决策的认识、知识水平、参与决策的首选和实际程度都有所提高，但对筛查决策没有影响。
基于社区的干预措施可以影响关于 PSA 筛查的知情决策的关键措施。
