HIV/STD Prevention for Young Adults Online

描述（由申请人提供）：本提案旨在利用青少年的互联网使用来促进安全套的使用，包括：(1)为期一年的形成阶段，评估青少年（即18至24岁之间）对网页设计的偏好，并根据社会认知理论（SCT）和计划行为理论（TPB）开发最先进的、基于网络的定制信息，促进安全套的使用；(2)一项随机对照试验（RCT）来评估在青少年中使用安全套的网络定制信息的效果。在最初的6个月里，调查人员将与18至24岁的年轻人进行反复的焦点小组讨论，以产生、测试和修改定制安全套使用信息的想法。在焦点小组调查的同时，在接下来的6个月里，调查人员将与专家网页设计师合作，将设计偏好转化为多个互联网网页。在项目的第13到40个月，我们将在互联网上实施一项随机对照试验。年龄在18岁到24岁之间，在丹佛市市区的丹佛健康或计划生育诊所就诊的年轻人将被招募参加这项研究。他们首先将（在诊所环境中）完成一项在线、自我管理的安全套使用结果预期、规范、自我效能和实践基线评估。然后参与者将被随机（通过电脑）分到两个研究组。在第一组（对照组）中，参与者将被引导到一个关于避孕套使用的通用说教信息的网页。第二部分（量身定制干预）将引导参与者进入网页，在那里他们将获得量身定制的反馈，以增加对安全套使用、安全套使用规范、安全套谈判的自我效能和安全套使用的自我效能的积极预期，这些反馈以角色榜样提供的量身定制的信息的形式呈现。所有参与者将被要求两次返回互联网站点——第一个月进行信息强化接触，第三个月进行后续风险评估。这些后续访问可以在参与者可以访问互联网的任何地点进行。通过这项调查，我们将了解定制互动信息是否会影响安全套的预期效果、规范和自我效能，以及定制互动信息是否会影响与非主要伴侣使用安全套。

DESCRIPTION (provided by applicant): This proposal is designed to capitalize on youth Internet use to promote condom use, incorporating (1) a one-year formative phase to assess youth (i.e., between 18 and 24 years old) preferences for web design and to develop state-of-the- art, web-based tailored messages promoting condom use based on Social Cognitive Theory (SCT) and the Theory of Planned Behavior (TPB); and (2) a randomized controlled trial (RCT) to assess the efficacy of web-based tailored messages on condom use among youth. During the first 6 months, investigators will conduct iterative focus groups with 18-to 24-year-olds to generate, test, and modify ideas for tailored condom use messages. Simultaneous to the focus groups and for 6 months thereafter, investigators will work with expert web designers, to translate design preferences to multiple Internet web pages. In months 13 through 40 of the project, we will implement a randomized controlled trial that will take place on the Internet. Youth between the ages of 18 and 24 who attend Denver Health or Planned Parenthood clinic sites in the Denver metropolitan area will be recruited to participate in the study. They first will complete (in the clinic setting) an online, self-administered baseline assessment of condom-use outcome expectations, norms, self-efficacy and practices. Participants will then be randomized (by computer) to one of two study arms. In the first arm (control), participants will be directed to a web page with generic didactic messages about condom use. The second arm (tailored intervention) will direct participants to web pages where they will receive tailored feedback to increase positive outcome expectancies towards condom use, condom use norms, self-efficacy for condom negotiation, and self-efficacy for condom use in the form of tailored messages delivered by role models. All participants will be asked to return to the Internet site two times--at one month for a booster exposure to messages, and three months for a follow-up risk assessment. These follow-up visits can occur at any location where the participant can access the Internet. Through this investigation we will discern whether condom outcome expectancies, norms and self-efficacy are affected by tailored interactive messages and whether condom use with non-main partners is affected by tailored interactive messages.