Heather N, Whitton B, Robertson I
Br J Clin Psychol. 1986 Feb;25 ( Pt 1):19-34. doi: 10.1111/j.2044-8260.1986.tb00667.x.
A total of 785 individuals responded to a newspaper advertisement offering free help to cut down drinking and were sent alternately either a self-help manual based on behavioural principles or a general information and advice booklet. Of these, 247 (31.3 per cent) returned assessment questionnaires or agreed to be interviewed by telephone and 132 of these respondents (53.4 per cent) were successfully contacted at six-month follow-up. Those lost to follow-up were more 'socially stable' on initial measures than those successfully contacted. Results showed a greater reduction in previous week's consumption in the group receiving the manual than in the control group. In addition, respondents interviewed by telephone showed a greater reduction on a measure of alcohol-related problems and a higher proportion reducing drinking than those contacted only by post. There was no evidence that reductions in consumption were confined to relatively low consumers or to those showing only early signs of dependence on alcohol, irrespective of which type of material was received.
共有785人回应了一则报纸广告，该广告提供免费帮助以减少饮酒，并被交替发送基于行为原则的自助手册或一般信息与建议手册。其中，247人（31.3%）返回了评估问卷或同意接受电话访谈，在六个月的随访中，成功联系到了这些受访者中的132人（53.4%）。失访者在初始测量时比成功联系到的人“社会稳定性”更高。结果显示，接受手册的组在前一周的饮酒量减少幅度大于对照组。此外，接受电话访谈的受访者在与酒精相关问题的测量上减少幅度更大，且减少饮酒的比例高于仅通过邮寄联系的受访者。没有证据表明饮酒量的减少仅限于饮酒量相对较低的消费者或仅表现出酒精依赖早期迹象的人，无论收到的是哪种类型的材料。
