Background

In the context of road safety, this study aims to examine the prevalence of drug use in a random sample of drivers.

Methods

A stratified probabilistic sample was designed to represent vehicles circulating on non-urban roads. Random drug tests were performed during autumn 2014 on 521 drivers in Catalonia (Spain). Participation was mandatory. The prevalence of drug driving for cannabis, methamphetamines, amphetamines, cocaine, opiates and benzodiazepines was assessed.

Results

The overall prevalence of drug use is 16.4% (95% CI: 13.9; 18.9) and affects primarily younger male drivers. Drug use is similarly prevalent during weekdays and on weekends, but increases with the number of occupants. The likelihood of being positive for methamphetamines is significantly higher for drivers of vans and lorries.

Conclusions

Different patterns of use are detected depending on the drug considered. Preventive drug tests should not only be conducted on weekends and at night-time, and need to be reinforced for drivers of commercial vehicles. Active educational campaigns should focus on the youngest age-group of male drivers.

中文翻译：

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根据路边调查中的强制性随机测试，驾驶员的吸毒率

背景

在道路安全的背景下，本研究旨在检查随机抽样的驾驶员中毒品使用的普遍性。

方法

设计分层概率样本来表示在非城市道路上行驶的车辆。2014年秋季，在加泰罗尼亚（西班牙）对521位驾驶员进行了随机药物测试。参与是强制性的。评估了大麻，甲基苯丙胺，苯丙胺，可卡因，鸦片和苯二氮卓类药物驾驶的普遍性。

结果

药物使用的总体患病率为16.4％（95％CI：13.9； 18.9），主要影响年轻的男性驾驶员。在工作日和周末，毒品的使用也同样普遍，但随着乘员人数的增加而增加。面包车和货车驾驶员对甲基苯丙胺阳性的可能性要高得多。

结论

根据所考虑的药物，可以检测到不同的使用方式。预防性药物测试不仅应在周末和夜间进行，而且需要加强对商用车驾驶员的检测。积极的教育活动应着眼于年龄最小的男性驾驶员。