Analysis of the Accuracy of Weight Loss Information Search Engine Results on the Internet
Analysis of the Accuracy of Weight Loss Information Search Engine Results on the Internet
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DOI：
10.2105/ajph.2014.302070
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发表时间：
2014-10-01
影响因子：
12.7
通讯作者：
Norma Nguyen
中科院分区：
文献类型：
--
作者：
Modave, Francois;Shokar, Navkiran K.;Norma Nguyen
目标.我们系统地识别和评估了用户可能访问的与减肥相关的在线信息的质量和全面性。我们评估了2012年网站的内容质量、信息的可访问性和作者凭据，这些网站是从我们生成的减肥特定查询中识别出来的。我们根据现有的以证据为基础的减肥指南对内容进行评分。103个网站符合我们的资格标准（21个商业网站，52个新闻/媒体网站，7个博客网站，14个医疗、政府或大学网站，9个未分类网站）。平均内容质量评分为3.75（范围= 0-16; SD = 2.48）。大约5%（4.85%）的研究中心在营养、体力活动和行为方面的得分大于8分（共12分）。内容质量得分差异显着的网站类型;医疗，政府或大学网站（平均值= 4.82，SD = 2.27）和博客（平均值= 6.33，SD = 1.99）的得分最高。商业网站（平均值= 2.37，SD = 2.60）或新闻/媒体网站（平均值= 3.52，SD = 2.31）得分最低（方差分析P <0.005）。人们可能在网上访问的减肥信息往往质量不合格，因为大多数全面和高质量的网站在搜索结果中排名太低。
Objectives. We systematically identified and evaluated the quality and comprehensiveness of online information related to weight loss that users were likely to access.Methods. We evaluated the content quality, accessibility of the information, and author credentials for Web sites in 2012 that were identified from weight loss specific queries that we generated. We scored the content with respect to available evidence-based guidelines for weight loss.Results. One hundred three Web sites met our eligibility criteria (21 commercial, 52 news/media, 7 blogs, 14 medical, government, or university, and 9 unclassified sites). The mean content quality score was 3.75 (range = 0-16; SD = 2.48). Approximately 5% (4.85%) of the sites scored greater than 8 (of 12) on nutrition, physical activity, and behavior. Content quality score varied significantly by type of Web site; the medical, government, or university sites (mean = 4.82, SD = 2.27) and blogs (mean = 6.33, SD = 1.99) had the highest scores. Commercial (mean = 2.37, SD = 2.60) or news/media sites (mean = 3.52, SD = 2.31) had the lowest scores (analysis of variance P < .005).Conclusions. The weight loss information that people were likely to access online was often of substandard quality because most comprehensive and quality Web sites ranked too low in search results.