@Article{信息:doi 10.2196 / / jmir.5.4。e28，作者="Koo, Malcolm and Skinner, Harvey"，标题="改进网络搜索:青少年戒烟网站的案例研究"，期刊="J Med Internet Res"，年="2003"，月=" 11 "，日="14"，卷="5"，数="4"，页数="e28"，关键词="互联网;戒烟;青少年;青少年;搜索引擎;背景:网络已经成为卫生信息的重要和有影响力的来源。由于Internet上有大量的Web站点，用户在搜索信息时经常求助于流行的搜索站点。然而，人们对通过简单的网络搜索青少年戒烟信息所返回的网站特征知之甚少。目的:确定搜索引擎检索到的青少年戒烟网站的特征，以及信息质量与搜索排名的相关性。 Methods: The top 30 sites returned by 4 popular search sites in response to the search terms ``teen quit smoking'' were examined. The information relevance and quality characteristics of these sites were evaluated by 2 raters. Objective site characteristics were obtained using a page-analysis Web site. Results: Only 14 of the 30 Web sites are of direct relevance to smoking cessation for teenagers. The readability of about two-thirds of the 14 sites is below an eighth-grade school level and they ranked significantly higher (Kendall rank correlation, tau = -0.39, P= .05) in search-site results than sites with readability above or equal to that grade level. Sites that ranked higher were significantly associated with the presence of e-mail address for contact (tau = -0.46, P= .01), annotated hyperlinks to external sites (tau = -0.39, P= .04), and the presence of meta description tag (tau = -0.48, P= .002). The median link density (number of external sites that have a link to that site) of the Web pages was 6 and the maximum was 735. A higher link density was significantly associated with a higher rank (tau = -0.58, P= .02). Conclusions: Using simple search terms on popular search sites to look for information on smoking cessation for teenagers resulted in less than half of the sites being of direct relevance. To improve search efficiency, users could supplement results obtained from simple Web searches with human-maintained Web directories and learn to refine their searches with more advanced search syntax. ", issn="1438-8871", doi="10.2196/jmir.5.4.e28", url="//www.mybigtv.com/2003/4/e28/", url="https://doi.org/10.2196/jmir.5.4.e28", url="http://www.ncbi.nlm.nih.gov/pubmed/14713656" }