Vogt Florian, Hall Sue, Hankins Matthew, Marteau Theresa M
Health Psychology Section, Department of Psychology, Institute of Psychiatry, King's College London, London, UK.
Health Psychol. 2009 Mar;28(2):174-82. doi: 10.1037/a0013783.
To evaluate three theory-based interventions aimed at increasing the rate at which primary care physicians recommend smoking cessation services to smokers.
Primary care physicians (n = 251) were randomized to one of four conditions: (a) information based on social cognitive theory (SCT) targeting outcome expectations, (b) information based on SCT + elaboration likelihood model, (c) feedback based on self-perception theory, or (d) control.
Intentions to recommend and self-reported recommendations of smoking cessation services 1 week postintervention.
Data were analyzed using covariance and mean structure analysis. Compared with the control group, only the SCT group reported more frequently recommending services (mean difference = 1.1 recommendations per week, Cohen's d = 0.46) and higher intentions. Mediation analysis was consistent with increased intentions resulting from changes in outcome expectations. There was no evidence that changes in intentions explained self-reported behavior change.
The study provides preliminary "proof of principle" for further studies incorporating more robust outcome measures.
评估三种基于理论的干预措施，旨在提高初级保健医生向吸烟者推荐戒烟服务的比例。
将251名初级保健医生随机分为四种情况之一：(a)基于社会认知理论（SCT）针对结果期望的信息，(b)基于SCT+精细可能性模型的信息，(c)基于自我认知理论的反馈，或(d)对照组。
干预后1周推荐戒烟服务的意向和自我报告的推荐情况。
使用协方差和均值结构分析对数据进行分析。与对照组相比，只有SCT组报告更频繁地推荐服务（平均差异=每周1.1次推荐，科恩d值=0.46）且意向更高。中介分析与结果期望变化导致意向增加一致。没有证据表明意向变化能解释自我报告的行为变化。
该研究为纳入更有力结局指标的进一步研究提供了初步的“原理证明”。
