Department of Physiology and Pharmacology, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA.
Alcohol Alcohol. 2013 Jul-Aug;48(4):396-401. doi: 10.1093/alcalc/agt047. Epub 2013 May 21.
Breath alcohol concentration (BrAC) estimation training has been effective in increasing estimation accuracy in social drinkers. Predictors of estimation accuracy may identify populations to target for training, yet potential predictors typically are not evaluated. In addition, the therapeutic efficacy of estimation training as a preventive strategy for problematic drinking is unknown.
Forty-six social drinkers with a recent binge history were randomly assigned to an intervention or control group (n = 23 per group). In each of three sessions (pretraining, training, testing), participants consumed alcohol (0.32, 0.24, 0.16 and 0.08 g/kg, in random order) every 30 min (total dose: 0.8 g/kg). Participants provided five BrAC estimates within 3 h of alcohol administration. The intervention group, but not control group, received internal and external training. During testing, participants provided BrAC estimates, but received no feedback. Participants returned for two follow-up visits to complete self-report measures.
BrAC estimation training improved intervention group estimation accuracy within the laboratory. Together, training, low trait anxiety and low risk expectancy predicted high testing accuracy. There were no significant group differences in subsequent alcohol consumption, behavior under the influence or risk expectancy regarding potentially hazardous behaviors.
BrAC estimation training is effective in the laboratory but may not translate into naturalistic settings.
酒精呼气浓度（BrAC）估计训练已被证明能有效提高社交饮酒者的估计准确性。 准确估计的预测因素可以确定需要进行培训的人群，但潜在的预测因素通常未得到评估。 此外，作为预防策略，估计训练对有问题饮酒的治疗效果尚不清楚。
46 名有近期狂饮史的社交饮酒者被随机分配到干预组或对照组（每组 n = 23）。在三个会话（预训练、训练、测试）中的每一个会话中，参与者每 30 分钟（总剂量：0.8 g/kg）摄入酒精（0.32、0.24、0.16 和 0.08 g/kg，随机顺序）。参与者在酒精给药后 3 小时内提供了五次 BrAC 估计值。干预组（但非对照组）接受了内部和外部培训。在测试期间，参与者提供了 BrAC 估计值，但未收到反馈。参与者返回进行了两次随访，以完成自我报告的测量。
BrAC 估计训练可提高实验室干预组的估计准确性。培训、低特质焦虑和低风险预期共同预测了高测试准确性。在随后的饮酒量、影响下的行为或潜在危险行为的风险预期方面，两组之间没有显著差异。
BrAC 估计训练在实验室中有效，但可能无法转化为自然环境。
