DYD-RCT: On-line randomised controlled trial of an interactive web-based intervention for reducing alcohol consumption

我们正在调查一个网站（Down Your Drink）是否可以帮助酗酒者少喝酒。据估计，英格兰约有710万16 - 64岁的人（占人口的26%）饮酒超过建议的安全水平。虽然确实存在治疗方法，但仍有许多需要治疗的人无法获得治疗。一些研究发现，长期患病（如心脏病）的人使用网站与知识、信心、社会支持、健康行为和临床结果的改善有关。互联网干预措施受到用户的欢迎，因为它们方便（可在白天或晚上的任何时间使用）、可获得（可供任何有互联网接入的人使用）、匿名和保密。我们更新了现有的Down Your Drink网站，纳入了用户反馈和关于用户对互联网干预措施需求的研究结果。为了了解Down Your Drink的哪些功能会改变行为（如果有的话），我们的参与者可以访问网站的不同区域。我们希望在2009年12月免费提供Down Your Drink。

We are investigating whether a website (Down Your Drink) can help heavy drinkers drink less alcohol. It is estimated that around 7.1 million people in England aged 16 - 64 (26% of the population) are drinking over the recommended safe levels. Although treatments do exist, there are many people in need of treatment that do not have access to it.Some studies have found the use of websites for people with long-term conditions (such as heart disease) to be associated with improved knowledge, confidence, social support, health behaviours and clinical outcomes. Internet interventions are popular with users, as they are convenient (can be used at any time of day or night), accessible (can be used by anyone with Internet access), anonymous and confidential. They can be revisited as often as wanted, which may help to change behaviour and prevent relapse.We have updated the existing Down Your Drink website inline with user feedback and research findings on user requirements of Internet interventions. To find out what features of Down Your Drink are responsible for changing behaviour, if any, our participants have access to different areas of the website. We hope to make Down Your Drink freely available in December 2009.