Department of Health Research and Policy, Stanford University School of Medicine, Stanford, CA 94305-5405, USA.
Heart Fail Clin. 2013 Jan;9(1):29-36. doi: 10.1016/j.hfc.2012.09.007. Epub 2012 Oct 11.
Observational methods are evolving in response to the widespread availability of data from clinical registries, electronic health records, and administrative databases. These approaches will never eliminate the need for randomized trials, but clearly have a role in evaluating the effect of therapies in unselected populations treated in routine practice.
观察性研究方法正在随着临床注册数据库、电子健康记录和管理数据库中数据的广泛应用而不断发展。这些方法永远不会取代随机临床试验,但在评估常规实践中治疗的未经选择的人群的治疗效果方面显然具有一定作用。