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Background/aims: Polydrug use is a complicated phenomenon that is measured in a wide variety of different ways. Using Finland as an example, we aimed to demonstrate how the prevalence and prevalence trends of concurrent polydrug use (CPU) varied in the general population based on the different measurements used., Methods: Population-based Drug Surveys conducted every 4 years during 1998-2014 were used. CPU was measured with different measurements: strict, medial and loose definition of CPU, which were based on different combinations of alcohol, illicit drugs, pharmaceutical drugs and cigarettes used during the last 12 months/30 days. Logistic regression was used to estimate the p values for assessing trends., Results: Depending on the measurements used, the prevalence of CPU in 2014 varied between 2.0 and 18.7%. Different definitions also produced contradictory trends of CPU: there was a modest increase in prevalence if it was measured with a medial (p < 0.001) or strict (p = 0.054) definition, but when measured with the loose definition (only measure that included smoking), there was a decrease in prevalence (p < 0.001)., Conclusions: The prevalence of CPU varies greatly depending on the measurement used, as does the course of the prevalence trends. The concept of simultaneous polydrug use may capture the phenomenon better compared to the concept of CPU., (© 2017 S. Karger AG, Basel.)

An introduction is presented in which the editor discusses various reports within the issue on topics including alcohol use disorder, substance use, and polydrug use.

Aims: To determine the relationships between the different patterns of drinking and drug use in the general population. Design: The data from three nationwide surveys conducted in Finland in 1998, 2002 and 2004 were pooled into one dataset (n = 7,227). Participants: Population aged 15–69. Measurements: Use of illicit drugs was analyzed in relation to annual alcohol consumption, heavy episodic drinking, frequenting of pubs and restaurants, and the misuse of prescribed drugs. Respondents were divided into five different groups according to their involvement in drug cultures, i.e. ‘no contact with drug cultures’, ‘some contact with drug cultures’, ‘drug experimenters and ex-users’, ‘cannabis users’ and ‘multidrug users’. Findings: The prevalence of drug use increased along with the annual alcohol consumption, and polysubstance use was most prevalent among heavy drinkers. Heavy episodic drinking and frequenting of pubs and restaurants increased in parallel with involvement in drug cultures. Misuse of prescribed drugs was most prevalent among multidrug users. Conclusions: Polysubstance use patterns reveal an interlacing of alcohol and drug cultures. However, standard measures employed in alcohol and drug research are insufficient to capture the phenomenon in detail, and more research and the development of new approaches are needed. Copyright © 2009 S. Karger AG, Basel [ABSTRACT FROM AUTHOR]

This presentation describes the two last decades of Finnish social alcohol and drug research based on work done by the Alcohol and Drug Research Group and The Finnish Foundation for Alcohol Studies. The Group consists of 13 permanent researchers and three research secretaries. The main activity of the Foundation is to award grants for post-gradual students. In recent years alcohol studies have been heavily influenced by Finland's entry into the EU. Simultaneously, the position of drug research has been considerably strengthened. [ABSTRACT FROM AUTHOR]

• AIMS This article reports the results of a population survey in autumn 2004. First, trends in drug use are studied by comparing the 2004 data with materials collected in the same way in 1992. 1996, 1998 and 2002. Secondly. the relationship between drug use and alcohol consumption is discussed. This latter aspect is of special interest in Finland today following the changes in the alcohol environment in spring 2004 (tax cuts on alcohol, the discontinuation of the import quota within the EU and from Estonia). If alcohol consumption increases, the question is will that have the effect of driving up the consumption of other substances (addition hypothesis) or on the contrary, will drug use decrease and be substituted by increased alcohol consumption (substitution hypothesis)? • METHODS The data for the research were collected in a postal questionnaire in autumn 2004. A random sample of 3992 persons aged 15-69 was drawn from the central population register. A total of 2526 persons responded, giving a response rate of 63 per cent. In order to gain a clearer picture of the relationship between drug use and alcohol consumption, we have linked the data for 1998, 2002 and 2004 into one dataset comprising more than 7 000 respondents. • RESULTS The tendency for drug use and experimenting to increase has slowed down since the turn of the millennium. The increase in alcohol sales and tourist imports is not driving up the level of drug use. However, this study lends support to the observations by Juha Partanen (Wet high (1994)) about the close links between drug use and alcohol consumption. In the urban life-styles of younger people the use of cannabis is interwoven with frequent clubbing and party-style drinking patterns. Another indication of the intertwining of drug and alcohol cultures is found in the group of mixed users, who not only drink heavily but also use various drugs and medicines. It would seem that the risk of drug use is increased by the early onset of binge drinking. • CONCLUSION There is as yet not enough evidence to confirm the addition hypothesis. However, given the close links of drug use with alcohol consumption, it certainly is a possibility that if alcohol consumption sharply increases, this might trigger an increase in drug use and experimenting, particularly among young people. The substitution hypothesis, on the other hand, does not seem very likely. On the contrary, it seems that drug use in Finland ties in rather closely with drinking to intoxication. [ABSTRACT FROM AUTHOR]

An obituary for statistician, mathematician and sociologist Juha Partanen is presented.

Background: Non-medical use of prescription drugs (NMUPD) is known to be associated with illicit drug use, but less is known about how illicit drug use has changed in NMUPD. We examined (1) the changes in illicit drug use among Finnish non-medical users of prescription drugs during the 2000s and (2) whether the trends of illicit drug use differ by non-medical use of prescription drugs in the general population.Methods: Data were derived from population-based (aged 15-69) Drug Surveys conducted in Finland in 2002, 2006, 2010 and 2014. The response rates varied between 63% and 48%. NMUPD during the last year was measured (n=252). Past-year illicit drug use among non-medical users of prescription drugs and the reference population not reporting NMUPD (n=10,967) was compared. Logistic regression was used to estimate the p-values for trends.Results: Illicit drug use has increased notably among Finnish non-medical users of prescription drugs (from 21% to 70%, p for trend<0.001). This was not explained by the respondents' gender, age, employment status or alcohol use. Among the reference population, illicit drug use also increased statistically significantly, but much more moderately (from 2.5% to 5.4%). The difference between the trends was confirmed by an interaction test (p=0.022).Conclusions: NMUPD seems to be increasingly merging with illicit drug use. This indicates an increasing prevalence of polydrug use among non-medical users of prescription drugs, which may bring about more severe harms and worse health outcomes for users and more challenges in regard to treatment. [ABSTRACT FROM AUTHOR]

Background: Cannabis is the most popular illicit drug among adolescents in developed countries, including Finland. The aim of this study was to estimate 1) how cannabis experimentation among Finnish adolescents changed between 2003 and 2019, and 2) whether the associations between cannabis experiments and factors related to it, especially the use of tobacco and nicotine products, changed during the same time period.Methods: The analyses are based on the European School Survey Project on Alcohol and Other Drugs data, collected from Finnish adolescents aged 15 to 16 in 2003, 2007, 2011, 2015, and 2019 (N = 20,630).Results: Experimentation with cannabis among Finnish adolescents has increased since the beginning of our follow-up. At the same time, alcohol use and smoking have decreased markedly, and attitudes toward cannabis use have become more relaxed. The association between smoking and cannabis experimentation has become weaker over time. However, the use of tobacco and nicotine products, especially polytobacco, is still a strong risk factor for experimentation with cannabis. The higher the number of tobacco or nicotine products used, the higher the probability for cannabis experimentation.Conclusions: Experimentation with cannabis has previously been concentrated predominantly on adolescents who smoke, but recently non-smokers are increasingly trying cannabis. It is possible that alternative ways of using cannabis may have increased its use. Despite the strict cannabis policy in Finland, its use has increased, which may be an indication that youth cultures and images of different substances play a significant role in adolescents experimenting with cannabis. [ABSTRACT FROM AUTHOR]