Department of Paediatrics, Faculty of Health, Centre for Clinical and Translational Research (CCTR), Helios University Medical Centre Wuppertal, Witten/Herdecke University, Witten, Germany.
Institute of Medical Biometry and Epidemiology (IMBE), Faculty of Health, Witten/Herdecke University, Witten, Germany.
Harm Reduct J. 2021 Dec 7;18(1):122. doi: 10.1186/s12954-021-00567-4.
Worldwide, alcohol-related road traffic accidents represent a major avoidable health risk. The aim of this study was to evaluate the accuracy of self-estimating the degree of acute alcohol intoxication regarding the legal driving limit, and to identify risk factors for misjudgement.
In this prospective randomised controlled crossover trial, 90 social drinkers (mean age 23.9 ± 3.5 years, 50% female) consumed either beer or wine. Study group subjects were made aware when exceeding the legal driving limit (BrAC = 0.05%). Controls received no information about their BrAC. For crossover, beer or wine were consumed in the opposite order.
39-53% of all participants exceeded the legal driving limit whilst under the impression to be still permitted to drive. Self-estimation was significantly more accurate on study day 2 (p = 0.009). Increasing BrAC positively correlated with self-estimation inaccuracy, which was reproducible during crossover. Multiple regression analysis revealed fast drinking and higher alcohol levels as independent risk factors for inaccurate self-estimation.
Social drinkers are commonly unaware of exceeding the legal driving limit when consuming alcohol. Self-estimating alcohol intoxication can be improved through awareness. Dedicated awareness programs, social media campaigns and government advice communications should be utilised to address this avoidable hazard. Trial registration The trial was registered prospectively at the Witten/Herdecke University Ethics Committee (trial registration number 140/2016 on 04/11/2016) and at the DRKS-German Clinical Trials Register (trial registration number DRKS00015285 on 08/22/2018-Retrospectively registered). Trial protocol can be accessed online.
在全球范围内，与酒精相关的道路交通碰撞事故是一个可避免的重大健康风险。本研究旨在评估个体对自身急性酒精中毒程度的自我估计与法定驾驶限制之间的准确性，并确定判断错误的风险因素。
本前瞻性随机对照交叉试验纳入 90 名社交饮酒者（平均年龄 23.9±3.5 岁，50%为女性），饮用啤酒或葡萄酒。研究组在超过法定驾驶限制（血液酒精浓度=0.05%）时被告知。对照组未收到关于其血液酒精浓度的信息。交叉试验时，按相反的顺序饮用啤酒或葡萄酒。
所有参与者中，有 39%-53%的人在误以为仍可驾驶的情况下超过了法定驾驶限制。自我估计在研究日 2 时更准确（p=0.009）。血液酒精浓度的升高与自我估计的不准确性呈正相关，且在交叉试验中可重现。多元回归分析显示，快速饮酒和较高的酒精水平是自我估计不准确的独立风险因素。
社交饮酒者在饮酒时通常没有意识到已超过法定驾驶限制。通过提高意识，可以改善对酒精中毒的自我估计。应利用专门的意识提高项目、社交媒体宣传和政府建议宣传来解决这一可避免的危险。
本试验在维滕/赫德克大学伦理委员会进行了前瞻性注册（试验注册号为 140/2016，于 2016 年 11 月 4 日），并在 DRKS-德国临床试验注册中心（试验注册号为 DRKS00015285，于 2018 年 8 月 22 日-回顾性注册）注册。试验方案可在线查阅。
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