@Article{信息:doi 10.2196 / / jmir.9.3。e27，作者=“Woodall, W Gill和Buller, David B和Saba, Laura和Zimmerman, Donald和Waters, Emily和Hines, Joan M和Cutter, Gary R和Starling, Randall”，标题=“电子邮件信息对营养教育网站返回使用的影响和饮食行为的后续变化”，期刊=“J医学互联网研究”，年=“2007”，月=“Sep”，日=“30”，卷=“9”，数=“3”，页=“e27”，关键词=“互联网;饮食;成年人;行为改变;nonresponse;电子邮件;磨损;背景:基于网络的疾病预防和行为改变项目可以覆盖高危人群。然而，互联网上的这种电子健康应用程序需要产生回报使用才能有效。 Limited evidence is available on how continued usage can be encouraged. Objective: This analysis tested whether routine email notification about a nutrition education website promoted more use of the website. Methods: Adults from six rural counties in Colorado and New Mexico, United States (n = 755) participating in a randomized trial and assigned to the intervention group (n = 380) received, over a period of 4 months, email messages alerting them to updates on the website, along with hyperlinks to new content. Update alerts were sent approximately every 5 weeks (each participant received up to 4 messages). Log-ons to the website were the primary outcome for this analysis. Results: A total of 23.5{\%} (86/366) of the participants responded to at least one email, and 51.2{\%} (44/86) of these participants responded to half of the email messages by logging on to the website. Significantly more log-ons occurred on email notification days compared to all other days (OR = 3.71, 95{\%} CI = 2.72-5.06). More log-ons also occurred just after the notification but declined each day thereafter (OR = 0.97, 95{\%} CI = 0.96-0.98 one day further from mass email). Non-Hispanics (OR = 0.46, 95{\%} CI = 0.26-0.84), older participants (OR = 1.04, 95{\%} CI = 1.04-1.06), and those using the Internet most recently (OR = 0.62, 95{\%} CI = 0.51-0.77) were more likely to log on. Responders to the messages had a more positive change in fruit and vegetable intake (mean change = +1.69) than nonresponders (+0.05), as measured with a food frequency assessment (adjusted Spearman partial correlation coefficient = 0.14, P = .049). Compared to nonresponders, responders were more likely to be non-Hispanic (P = .01), older (P < .001), and had used the Internet more recently (P < .001). Conclusions: Messages sent by email appeared to promote a modest short-lived increase in use of a disease prevention website by some adults. Those who responded to the messages by logging on to the website may have been influenced to improve their diet. ", issn="1438-8871", doi="10.2196/jmir.9.3.e27", url="//www.mybigtv.com/2007/3/e27/", url="https://doi.org/10.2196/jmir.9.3.e27" }