Health Information Research Unit, Department of Clinical Epidemiology and Biostatistics, McMaster University, 1280 Main Street, West Hamilton, Ontario L8S 4K1, Canada.
J Clin Epidemiol. 2012 Dec;65(12):1289-95. doi: 10.1016/j.jclinepi.2012.05.003. Epub 2012 Sep 10.
To evaluate the quality of evidence reporting, breadth of coverage, and timeliness of content updating of 10 selected online medical texts.
Each text was assessed for quality based on an 11-item scale, which included items related to editorial policy and updating, appraisal, and transparent incorporation of newly published clinical research and evidence-based guidelines. Breadth of coverage was determined by the percentage of 60 randomly selected International Classification of Diseases 10 (ICD-10) codes covered by each of the texts. The same 60 ICD-10 codes were used to obtain a sample of topic chapters for the assessment of timeliness of updates.
Quality scores ranged from a high of 9 of 11 points (Clinical Evidence) to a low of 0 of 11 points (PEPID), with a mean score of 6.7. Breadth of coverage ranged from 83% of randomly selected topics covered (UpToDate) to 25% (Clinical Evidence), with 6 of 10 texts covering 60% or more; average coverage across all texts was 57%. Variability was also observed with regard to average time since last content update, ranging from 3.5 (DynaMed) to 29 months (First Consult), with an average time since update of 12.4 months.
No single resource was ideal and those seeking answers to clinical questions are well-advised not to rely solely on a single point-of-care product.
评价 10 种在线医学文本的证据报告质量、涵盖范围和内容更新及时性。
根据包括编辑政策和更新、评估以及新发布的临床研究和循证指南的透明纳入等项目的 11 项量表对每种文本进行质量评估。涵盖范围通过每种文本涵盖的 60 个随机选择的国际疾病分类第 10 版 (ICD-10) 代码的百分比来确定。使用相同的 60 个 ICD-10 代码来获取主题章节更新及时性的样本。
质量评分从 11 分中的 9 分（临床证据）到 11 分中的 0 分（PEPID）不等，平均得分为 6.7。涵盖范围从 83%的随机选择主题涵盖（UpToDate）到 25%（临床证据）不等，有 6 种文本涵盖了 60%或更多；所有文本的平均覆盖率为 57%。内容更新的平均时间也存在差异，从 3.5（DynaMed）到 29 个月（First Consult）不等，平均更新时间为 12.4 个月。
没有一个资源是理想的，寻求临床问题答案的人最好不要仅依赖单一的即时产品。
