Cigarette Smoking as a Predictor of Male DUI Recidivism.

This study aimed to investigate the predictors of recidivism in first-time driving under the influence (DUI) offenders, analyzing variables derived from medico-legal and toxicological examinations. The research was structured as a comparative study for the period 2012-2019. DUI offenders with a blood alcohol concentration >0.5 were included in the study. The case group consisted of recidivist offenders, while the comparison group consisted of first-time offenders. Personal data, socioeconomics, and parameters linked to the DUI were compared between the two groups. Significance was determined by chi-square and Mann-Whitney tests. To prevent confounding effects, multivariate binary logistic regression analysis was performed. Our sample encompassed 1678 subjects (196 in the case group, 1482 in the comparison group). Gender, driving license category, education, and tobacco use resulted in significant differences between the groups. In a model including age at DUI, education, and smoking habit as independent variables, higher educational levels (high school, bachelor's) and older age protected against recidivism, whereas smoking >20 cigarettes/day was an independent risk factor for recidivism. Recidivist offenders have specific characteristics indicating different therapeutic programs and carefulness in driving license regranting. A higher tobacco consumption in recidivists suggests that the use of this substance could influence the risk of DUI for reasons that will need to be explored.

Driving license regranting in DUI subjects: Road accident variables and predictive factors of substance use disorder.

A comparative case study (2017-2020) was conducted to identify demographic, social, medico-legal, and toxicological variables associated with non-fatal accidents in driving under the influence (DUI) subjects. A second aim was to identify the factors predictive of substance use disorders among subjects. Drivers charged with alcohol DUI (blood alcohol concentration (BAC) > 0.5) and/or psychoactive substance DUI were included; cases included those involved in an accident while intoxicated, and the comparison group included DUI offenders negative for road accident involvement. Significance was determined by chi-square and Mann-Whitney tests. To prevent confounding effects, a multivariate binary logistic regression analysis was performed. Our sample encompassed 882 subjects (381 in the case group and 501 in the comparison group). Parameters such as psychoactive substances and BAC at the time of the road crash/DUI and the day of the week, when subjects were involved in the road accident or found DUI, resulted in significant differences (p < 0.01) between groups. The model's independent variables of BAC > 1.5 g/L (p = 0.013), BAC > 2.5 g/L (p < 0.001), and concurrent alcohol and psychoactive substance use (p < 0.001) were independent risk factors for an accident. Smoking >20 cigarettes/day was an independent risk factor for unfitness to drive (p < 0.01). Unfitness to drive was based primarily on ethyl glucuronide levels >30 pg/mg. Our results suggest a detailed assessment of DUI subjects with variables associated with accidents (BAC > 1.5 g/L and concurrent intake of psychoactive substances). Hair analysis, including ethylglucuronide (EtG) concentration, should be always performed. Based on our results, nicotine use should be investigated in cases of driving license regranting.

Coronavirus lockdown: Excessive alcohol consumption and illicit substance use in DUI subjects.

OBJECTIVE: This study investigates the consequences of the SarS-CoV-2 outbreak and of the resulting control measures on alcohol and illicit substance use in a high-risk population for substance-related disorders, utilizing an integrated medico-legal and toxicological approach. METHODS: The research was structured as a retrospective case-control study of subjects found to be driving under the influence (DUI) of alcohol and/or other psychoactive substances who were examined for driver's license regranting. Alcohol and/or drug use was assessed by comparing cases examined in the period from May to August 2020 (immediately after the lockdown in Italy) to control subjects examined in the same period in 2019. DUI subjects were examined by an integrated approach, descriptive analyses were conducted, and significance was determined by chi-square and Mann-Whitney tests. Variables linked to the pandemic outbreak and resulting lockdown were investigated as predictive factors in determining unfitness to drive. RESULTS: Cases (281) were significantly different from controls (261) concerning the judgment of unfitness to drive (p<.001) and had more subjects with chronic excessive alcohol use and/or illicit substance use. The two groups were rather homogeneous concerning the other variables, except for a difference in blood alcohol concentration (BAC) at the time of DUI (p = .027). No statistical association was found between the investigated variables linked to the lockdown and the judgment of unfitness to drive. CONCLUSIONS: Chronic excessive alcohol consumption and illicit substance use were more frequently observed in cases, which suggests a possible correlation between the pandemic/lockdown restrictions and an increase in psychoactive substance misuse. While these potentially correlative factors are discussed in this article, they require further study. If confirmed, the results should be considered in forensic and clinical settings.