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College students have been recognized as a risk group for substance use. Nevertheless, coherent risk factors for stimulant use remain to be elucidated. The objective of this paper is to identify risk factors associated with the recreational use of MDMA, cocaine, amphetamine and methamphetamine. An online questionnaire was distributed among colleges in Berlin. A sample of 12,914 college students participated, of which 9,382 met the inclusion criteria. Past-month prevalence was 7.0% for MDMA, 6.7% for amphetamine, 5.8% for cocaine and 0.1% for methamphetamine. Associated factors included male gender, "other" gender, homosexual and bisexual orientation, open relationship status or being single, engaging in sexual risk-taking behavior, having a psychiatric diagnosis, tobacco use, drinking alcohol and an increased number of (illicit) substances consumed in the past month and in life. Berlin college students showed a substantially higher prevalence of stimulant use compared to both the general population and college students in other cities. Certain parameters, e.g., polydrug use, were particularly high in this group. The results can be used in further development of prevention efforts. However, conclusions about causality are limited by the cross-sectional nature of this study, highlighting the necessity for longitudinal studies in this field. [ABSTRACT FROM AUTHOR]

Problem-drinking among university students is common and poses serious health-related risks. Therefore, identifying and addressing associated factors is important. A large cross-sectional online-survey with 12,914 university students from Berlin was conducted from November 2016 to August 2017. Relative-risk- and correlation-analysis was used to identify factors associated with problem-drinking and regular heavy-drinking. Independent t-tests compared impulsivity and personality traits, chi-square-tests compared drinking motives between risk- and non-risk-drinkers. Male gender, tobacco-smoking, illegal substance use, impulsivity and various sociodemographic and psychosocial variables were significantly related to problem/heavy-drinking. Extraversion was a risk, conscientiousness and agreeableness were protective factors. Drinking-motives did not differ significantly between risk- and non-risk-drinkers. Generally, the main drinking-motives were to feel elated, relax and social purposes. The identified markers and related problem behaviors may serve as a tool to enhance the identification of student subgroups at risk for problem/heavy-drinking, and hence improve targeted health-intervention-programs. [ABSTRACT FROM AUTHOR]

Research suggests that university students are at high risk of using licit and illicit substances and that there has been an increase over the last decade in substance use among university students in Berlin, Germany. The present study aims to investigate the relationship between personality and substance use among university students in the city of Berlin. A sample of 8778 students from 17 Berlin universities completed an online questionnaire. Short versions of the Big Five Inventory and the Barratt Impulsivity Scale as well as the SOEP-scale (German socioeconomic panel) for the concept of locus of control were used to assess personality traits. Four different user groups and six specific substances were studied using multinomial logistic and logistic regression models. Participants regularly using substances scored higher on impulsivity and openness and lower on conscientiousness compared to the other user groups. Further, they scored higher on extraversion and external locus of control compared to participants not using substances or exclusively drinking alcohol. Out of the personality dimensions examined, the relationship between substance use and impulsivity was strongest and had the highest effect size (medium) in our sample. Despite increasing prevalence among the high-risk group of university students in Berlin, universities have not yet sufficiently adopted prevention programs. These programs should be adapted to meet the needs of the target group which may be complemented with the findings of the study (e.g. emotional regulation training and goal management training). [ABSTRACT FROM AUTHOR]

Objectives: Drug checking as a tool for harm reduction is offered in certain cities throughout Europe, the USA, and Australia, but in general, it is internationally still scarcely available and controversially discussed. This study aimed at investigating the potential impact of a drug-checking offer on Berlin nightlife attendees' illicit drug use and at identifying the encouraging and discouraging factors for using or refraining from such an offer. Methods: Using an online questionnaire, we conducted a cross-sectional survey in a Berlin party scene. A total of 719 people participated in the survey that took part in 2019. Results: The vast majority of participants (92%) stated that they would use drug checking, if existent. If the test revealed the sample to contain a high amount of active ingredient, 91% indicated to take less of the substance than usual. Two-thirds (66%) would discharge the sample if it contained an unexpected/unwanted agent along with the intended substance. If the sample contained only unexpected/unwanted substances and not the intended substance at all, 93% stated to discharge the sample. Additional brief counseling was stated to be useful. Participants showed a comparatively high substance use. Conclusions: Drug checking as a harm reduction tool was highly accepted in the scene, and the majority of participants stated to align their consumption behavior accordingly, in a reasonable manner. A concomitant consultation would be appreciated, which may be used to direct educational information about harms and risks to users. [ABSTRACT FROM AUTHOR]

Different cognitive impairments have been reported as a result of long-term MDMA/ecstasy use. Increased impulsivity and altered decision-making have been shown to be associated with the development and maintenance of addictive disorders pointing toward the necessity to understand a potential impairment of decision-making due to MDMA use. Thus, assessing the long-term effects of MDMA is crucial in order to evaluate its controversially discussed therapeutic use. The aim of this systematic review was to summarize the scientific literature on potential effects of chronic MDMA use on higher order decision-making processes in humans. Therefore, a systematic search for controlled trials relevant to the topic has been performed. Only studies using specific tasks on decision-making were included that involved subjects in the drug-free interval with drug-naïve, and/or polydrug control groups. A total of 12 studies could be identified that met the inclusion criteria, all of which were cross-sectional studies. The findings on decision-making disturbances in MDMA users were heterogeneous. Seven studies reported increased risky decisions, whereas five studies did not find MDMA-specific influences on decision-making. Increased impulsivity was observed both in MDMA groups and in (poly)drug control groups in almost all studies. Thus, the current state of research does not allow for the conclusion that long-term use of MDMA affects decision-making behavior in general. More detailed specifications as well as further investigations of the relevant processes are needed. Significant tendencies toward risky decision-making among long-term MDMA use have been observed, but need to be confirmed by studies using a longitudinal design. [ABSTRACT FROM AUTHOR]

Objective: Substance use patterns and sociodemographic variables of Berlin's party scene were investigated to derive preventive measures and harm reduction services, which meet the needs of the consumers., Methods: A questionnaire was used online and in the field among Berlin partygoers (N = 877) and structured interviews (N = 20) were conducted with professionals working in this area, including social workers, emergency medical service, police and club owners and users., Results: A risky consumption pattern was found in 67 % of participants, who also stated need for counseling and a wish for reduction of their substance use. Of all preventive measures, drug checking was requested most often. Substances with the highest prevalence were alcohol, cannabis, amphetamine, MDMA, cocaine and ketamine, whereas methamphetamine and new psychoactive substances were barely stated., Conclusion: There is an urgent need to expand current preventive measures. There is a willingness of the scene to use according services, especially by those who need it the most., Competing Interests: Die Autoren geben an, dass kein Interessenkonflikt besteht. PD Dr. med. Stephan Köhler ist Teilnehmer des Charité Clinical Scientist Programms, finanziert durch die Charité – Universitätsmedizin Berlin und Berlin Institute of Health., (© Georg Thieme Verlag KG Stuttgart · New York.)