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Prevalence of Use, Abuse and Dependence of Illicit Drugs among Adolescents and Young Adults in a Community Sample
In: European addiction research, Band 4, Heft 1-2, S. 58-66
ISSN: 1421-9891
Prevalence findings for 1995 of illicit drug use as well as DSM-IV abuse and dependence are reported from a representative population sample of 3,021 respondents from Munich, Germany, aged 14–24 years. Results are based on personal interviews using the M-Composite International Diagnostic Interview (M-CIDI) with its DSM-IV diagnostic algorithms. Findings indicate that more than 30% of the adolescents and young adults are or have been using one or more illicit drugs at least once in their life. Men were slightly more likely to ever use drugs and used them more frequently than women. Cannabinoids were by far the most frequently used type of drug, followed by various stimulating drugs and hallucinogens. There is also considerable polysubstance use among 14- to 24-year-olds. Criteria for DSM-IV abuse without dependence were met by 4.1% of all men and 1.8% of all women, a dependence syndrome of any type of illicit drug was diagnosed in 2.5% of the men and 1.6% of the women. Cumulative age of onset incidence analyses suggest that substance use starts early, in about one-third before the age of 16 years and continues to rise for most drugs throughout adolescence and young adulthood. Overall these findings suggest that substance use and substance disorders are more prevalent than suggested in most previous German studies.
Substance Use, Abuse and Dependence in Germany
In: European addiction research, Band 4, Heft 1-2, S. 8-17
ISSN: 1421-9891
To provide background information about previous findings about the prevalence of use, abuse and dependence of various substances (nicotine, alcohol, prescription and illicit drugs) findings of available epidemiological studies in Germany from the 1980s and 1990s are summarized and critically evaluated. Focusing on findings of substance use surveys in adolescents and young adults the review indicates: (a) a considerable number of large scale questionnaire surveys in general population samples documenting the frequency of use and patterns of use of most substances; (b) indications of increasing rates of drug use particularly in East Germany; (c) high rates of illicit drug use, mainly of cannabinoids, but also stimulants and hallucinogens, among young age groups. No data are available from substance use surveys or from clinical epidemiological studies allowing the determination of how frequent substance abuse and substance dependence diagnoses are in the general population or in adolescents and young adults. Priorities for future research to ameliorate this unsatisfactory situation are outlined with emphasis on research in adolescents and young adults.
Comorbidity of Mental Disorders and Substance Use Disorders
In: European addiction research, Band 2, Heft 1, S. 36-47
ISSN: 1421-9891
Remission from substance dependence without formal help among adolescents and young adults
In: Sucht: Zeitschrift für Wissenschaft und Praxis, Band 55, Heft 2, S. 86-97
ISSN: 1664-2856
Remission von Substanzabhängigkeiten ohne formelle Hilfen bei Jugendlichen und jungen Erwachsenen Gegenstand: Die Studie widmet sich der Untersuchung von Remissionen ohne formelle Hilfen (»natürliche Heilung«, NR) bei Jugendlichen und jungen Erwachsenen. </p><p> Methoden: Prospektiv-longitudinale, epidemiologische Studie mit einer repräsentativen Stichprobe (N=3.021) im Alter von 14–24 Jahren zur Basisuntersuchung in München, Deutschland. DSM-IV Abhängigkeitsstörungen, Verlaufs- und Remissionsdaten wurden mittels persönlicher Interviews erhoben. </p><p> Ergebnisse: 28,3 % der Gesamtstichprobe erfüllten lebenszeitbezogen die Kriterien einer Nikotinabhängigkeit, 11,4 % die einer Alkoholabhängigkeit und 4,6 % die einer Abhängigkeit von illegalen Substanzen zur letzten Folgeerhebung. Nur eine kleine Gruppe (3,5 %) hatte formelle Hilfe erhalten. 20,2 % waren remittiert. Die höchste Rate von NR fand sich bei Abhängigkeiten von illegalen Substanzen (37,4 %). Kumulierte Wahrscheinlichkeiten nach der Dauer von Jahren zeigten verschieden Remissionsmuster. </p><p> Schlussfolgerungen: Neben der Verbesserung der Suchthilfe und ‑behandlung ist es notwendig Jugendliche und junge Erwachsenen in frühen Stadien einer Abhängigkeit bei selbstherbeigeführten Änderungen und natürlichen Heilungsprozessen zu unterstützen. Für diese Unterstützung ist die Schaffung geeigneter Interventionen notwendig.
Early Developmental Stages of Psychopathology Study (EDSP): Objectives and Design
In: European addiction research, Band 4, Heft 1-2, S. 18-27
ISSN: 1421-9891
The primary and secondary objectives of the Early Developmental Stages of Substance Abuse Study (EDSP) are described along with a detailed description of the overall design, special design features and instruments used. The EDSP is a 5-year prospective study with three waves of assessments. Special design features are the linkages with family genetic investigations as well as neuroendocrinological stress tests in high-risk subjects. Overall, 3,021 adolescents and young adults aged 14–24 years are included. The response rate for the baseline investigation was 71%. Diagnostic assessments were made by using a modified lifetime (baseline) and 12-month change version of the WHO-CIDI, adjusted for DSM-IV. Modifications refer to a more detailed quantitative assessment of symptoms and substance use variables as well as the inclusion of questions to assess course of disorders and subthreshold diagnostic conditions.
Substance Use and Substance Use Disorders in a Community Sample of Adolescents and Young Adults: Incidence, Age Effects and Patterns of Use
In: European addiction research, Band 12, Heft 4, S. 187-196
ISSN: 1421-9891
<i>Objective:</i> We present the prevalence and incidence rates of alcohol, nicotine, and illicit substance use, abuse, and dependence in a sample of German adolescents and young adults. Patterns of onset, cohort trends, and use of various substance classes are also analyzed. <i>Method:</i> A prospective longitudinal epidemiological study with a representative sample of adolescents and young adults (n = 3,021; baseline age range = 14–24 years) was conducted in Munich, Germany. Participants were assessed between 1995 and 1999 with the Munich-Composite International Diagnostic Interview. <i>Results:</i> Cumulative lifetime incidence (up to age 28) of any substance abuse or dependence was 43.8%, and 12-month prevalence of any substance abuse or dependence was 24.4%. The lifetime incidence of nicotine dependence was most frequent (24.8%), followed by alcohol abuse (19.3%) and alcohol dependence (9.2%); 61.7% endorsed the regular use of a substance for at least one circumscribed period during their lifetime. Age-specific incidence rates and age at onset of substance use disorders differed by age cohorts. Furthermore, nicotine dependence was significantly associated with illicit substance use disorders (HR = 2.6, 95% CI 1.7–4.0). An interactive relationship between age, age at onset of nicotine dependence, and subsequent onset of illicit substance use disorders was found. <i>Conclusions:</i> Since the baseline investigation in 1995, high incidence rates of substance use disorders and substance use have been observed in this young German sample. Especially younger cohorts report significantly earlier ages at onset of abuse and dependence. There also seems to be a trend towards a secondary age at onset peak of nicotine dependence after the onset of illicit drug use disorders. Further investigations are needed to study these patterns in younger samples. However, results emphasize the need for a combined prevention of illicit drugs and nicotine dependence.
Structure, Content and Reliability of the Munich-Composite International Diagnostic Interview (M-CIDI) Substance Use Sections
In: European addiction research, Band 4, Heft 1-2, S. 28-41
ISSN: 1421-9891
After reviewing currently available diagnostic assessment instruments for substance use disorders this paper describes the format and structure of the Munich-Composite International Diagnostic Interview (M-CIDI) substance disorder section. In addition, the test-retest reliability of diagnoses and criteria for nicotine, alcohol, illegal and prescription drugs, is reported. Findings obtained in community sample of adolescents and young adults indicate that the substance section is acceptable for almost all types of respondents, efficient in terms of time and ease of administration as well as reliable in terms of consistency of findings over time. The test-retest reliability over a period of an average of 1 month, as examined by two independent interviewers indicates good-to-excellent kappa values for all substance disorders assessed, with significant kappa values ranging between 0.55 for drug abuse and 0.83 for alcohol abuse. There was also fairly consistently high agreement for the assessment of single DSM-IV diagnostic criteria for abuse and dependence as well as the M-CIDI quantity-frequency and time-related questions. To conclude, although – unlike previous studies – this study was conducted in a community sample and not in patients and used considerably longer time intervals of more than a month between investigations, our M-CIDI reliability findings are at least as high as those from previous studies.