Voogt Carmen V, Kuntsche Emmanuel, Kleinjan Marloes, Engels Rutger C M E
Behavioural Science Institute, Radboud University Nijmegen, Nijmegen, P.O. Box 9104, 6500 HE Nijmegen, The Netherlands.
Behavioural Science Institute, Radboud University Nijmegen, Nijmegen, P.O. Box 9104, 6500 HE Nijmegen, The Netherlands; Addiction Switzerland, Research Institute, P.O. Box 870, 1001 Lausanne, Switzerland.
Drug Alcohol Depend. 2014 May 1;138:89-97. doi: 10.1016/j.drugalcdep.2014.02.009. Epub 2014 Feb 20.
To examine whether (1) the 'What Do You Drink' (WDYD) intervention resulted in drinking refusal self-efficacy (DRSE) changes directly after the intervention, and if so, whether these changes sustained at six-months follow-up and (2) DRSE was related to alcohol use over time, and if so, whether the strength of these relationships differed across conditions. Insight herein can help explain the sustained preventive effects of the WDYD intervention on alcohol use, as reported previously.
Alcohol use and DRSE data were collected from 907 participants (60.3% male; M=20.8 (SD=1.7) in a two-arm parallel group randomized controlled trial applying ecological momentary assessment with 30 time-points. Participants were randomized to the experimental (n=456: WDYD intervention) or control condition (n=451: no intervention).
Latent Growth Curve (LGC) analyses that modeled individual change in DRSE over time by condition revealed that participants in the experimental condition experienced a higher social pressure DRSE compared to participants in the control condition at six-months follow-up. Moreover, LGC analyses with time-varying covariates revealed that DRSE was negatively related to weekly alcohol consumption and social pressure DRSE to frequency of binge drinking. The WDYD intervention did not affect the strength of these relationships.
The WDYD intervention increased the level of social pressure DRSE directly after the intervention that sustained at six-months follow-up. This change is likely to be responsible for the sustained preventive effects of the WDYD intervention on alcohol use, as reported previously.
探讨（1）“你喝什么”（WDYD）干预在干预后是否直接导致饮酒拒绝自我效能感（DRSE）发生变化，如果是，这些变化在六个月随访时是否持续存在；以及（2）DRSE是否随时间与酒精使用相关，如果是，这些关系的强度在不同条件下是否存在差异。对此的深入了解有助于解释如先前报道的WDYD干预对酒精使用的持续预防效果。
在一项双臂平行组随机对照试验中，采用生态瞬时评估法，在30个时间点收集了907名参与者（60.3%为男性；平均年龄M = 20.8岁（标准差SD = 1.7））的酒精使用和DRSE数据。参与者被随机分为实验组（n = 456：WDYD干预）或对照组（n = 451：无干预）。
通过条件对DRSE随时间的个体变化进行建模的潜在增长曲线（LGC）分析显示，在六个月随访时，实验组的参与者相比对照组的参与者经历了更高的社会压力DRSE。此外，带有随时间变化协变量的LGC分析表明，DRSE与每周酒精消费量呈负相关，社会压力DRSE与暴饮频率呈负相关。WDYD干预并未影响这些关系的强度。
WDYD干预在干预后直接提高了社会压力DRSE水平，且该水平在六个月随访时持续存在。如先前报道，这种变化可能是WDYD干预对酒精使用产生持续预防效果的原因。
