Consommation de cocaïne, d'ecstasy et d'amphétamines en Suisse : premier état des lieux

La triangulation des données sur la vie nocturne fait partie du projet de Safer Nightlife Suisse (SNS) en accord avec l'Office fédéral de la santé publique. Cette année, c'est la première fois qu'un état des lieux est disponible pour un projet de triangulation des données. L'idée d'une triangulation des données complémentaire sur la base des chiffres pertinents de la prévalence de la consommation de substances dans la vie nocturne en Suisse, dont les sources divergent beaucoup, vise à estimer la réalité de la consommation. Dans ce premier rapport de triangulation, il s'agit d'une intégration des différentes données nationales disponibles sur la consommation de substances ainsi que de leur pondération selon leur pertinence. On trouvera la description du processus, la présentation des données disponibles ainsi qu'une première synthèse des évaluations de la tendance de la consommation de substances en Suisse

Assessing geographical differences in illicit drug consumption-A comparison of results from epidemiological and wastewater data in Germany and Switzerland

Background: Wastewater analysis is an innovative approach that allows monitoring illicit drug use at the community level. This study focused on investigating geographical differences in drug consumption by comparing epidemiological, crime and wastewater data. Methods: Wastewater samples were collected in 19 cities across Germany and Switzerland during one week, covering a population of approximately 8.1 million people. Self-report data and consumption offences for the investigated areas were used for comparison and to investigate differences between the indicators. Results: Good agreement between data sources was observed for cannabis and amphetamine-type stimulants, whereas substantial discrepancies were observed for cocaine. In Germany, an important distinction could be made between Berlin, Dortmund and Munich, where cocaine and particularly amphetamine were more prevalent, and Dresden, where methamphetamine consumption was clearly predominant. Cocaine consumption was relatively homogenous in the larger urban areas of Switzerland, although prevalence and offences data suggested a more heterogeneous picture. Conversely, marked regional differences in amphetamine and methamphetamine consumption could be highlighted. Conclusions: Combining the available data allowed for a better understanding of the geographical differences regarding prevalence, typology and amounts of substances consumed. For cannabis and amphetamine-type stimulants, the complementarity of survey, police and wastewater data could be highlighted, although notable differences could be identified when considering more stigmatised drugs (i.e., cocaine and heroin). Understanding illicit drug consumption at the national scale remains a difficult task, yet this research illustrates the added value of combining complementary data sources to obtain a more comprehensive and accurate picture of the situation.The University Jaume I acknowledges the financial support from Generalitat Valenciana (Group of Excellence Prometeo II 2014/023); ISIC 2012/16 and from the Spanish Ministry of Economy and Competitiveness (Project Ref CTQ2012-36189)