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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Parental alcohol use disorders and alcohol use and disorders in offspring: a community study

Lieb, Roselind, Merikangas, Kathleen R., Höfler, Michael, Pfister, Hildegard, Isensee, Barbara, Wittchen, Hans-Ulrich 29 January 2013 (has links) (PDF)
Background. We examined the association between parental alcohol use disorders and patterns of alcohol consumption and DSM-IV alcohol use disorders in their offspring in a community-based sample of young adults. Methods. Data are based on baseline and 4-year follow-up data of 2427 respondents aged 14–24 at baseline. Alcohol use and disorders in respondents were assessed using the Munich-Composite-International-Diagnostic-Interview with DSM-IV algorithms. Diagnostic information about parents was collected by family history information from the respondents, and by direct interview with one parent (cohort aged 14 to 17 years only). Results. Although the association between maternal and paternal alcohol use disorders and non-problematical drinking in offspring was minimal, there was a strong effect for the transition to hazardous use and for alcohol abuse and dependence; the effect of parental concordance for transition into hazardous use was particularly striking. Maternal history was associated with a higher probability of progression from occasional to regular use, whereas paternal history was associated with progression from regular to hazardous use. Parental alcoholism increased the risk for first onset of hazardous use and alcohol dependence between the ages of 14–17, and for an earlier onset of the alcohol outcomes in offspring. The impact of parental alcohol use disorders was comparable for male and female offspring. Conclusions. Parental alcoholism predicts escalation of alcohol use, development of alcohol use disorders and onset of alcohol outcomes in offspring.
2

Der Epidemiologische Suchtsurvey 2009: Neue nationale und internationale "benchmarks"

Wittchen, Hans-Ulrich 09 July 2012 (has links) (PDF)
Der Konsum psychoaktiver Substanzen stellt einen der wichtigsten vermeidbaren Risikofaktoren für Krankheit und frühzeitige Sterblichkeit dar. Die Weltgesundheitsorganisation (WHO, 2009) berichtet im Rahmen ihrer Schätzungen zur weltweiten Morbiditäts-und Mortalitätsbelastung, dass die legalen Substanzen Tabak und Alkohol zwei der fünf wichtigsten gesundheitlichen Risikofaktoren darstellen. ...
3

Aufhören ja – aber bitte nicht sofort! Ein Dilemma für die Allokationsforschung

Mühlig, Stephan, Hoch, Eva, Wittchen, Hans-Ulrich 30 October 2012 (has links) (PDF)
Im Rahmen der Smoking and Nicotine Dependence Awareness and Screening (SNICAS) Studie wurde neben strukturellen Bedingungen und Variablen auf Ärzteseite (z.B. Qualifikation, Einstellungen zum Rauchen und zur Raucherentwöhnung, spezielle Vorerfahrungen und Therapiepräferenzen, perzipierte Barrieren) daher auch die Aufhörmotivation und die Erfahrungen mit Aufhörversuchen auf Seiten der Patienten untersucht.
4

Prospective cohort study of cannabis use, predisposition for psychosis, and psychotic symptoms in young people

Henquet, Cécile, Krabbendam, Lydia, Spauwen, Janneke, Kaplan, Charles, Lieb, Roselind, Wittchen, Hans-Ulrich, van Os, Jim 28 August 2013 (has links) (PDF)
Objective: To investigate the relation between cannabis use and psychotic symptoms in individuals with above average predisposition for psychosis who first used cannabis during adolescence. Design: Analysis of prospective data from a population based sample. Assessment of substance use, predisposition for psychosis, and psychotic symptoms was based on standardised personal interviews at baseline and at follow up four years later. Participants: 2437 young people (aged 14 to 24 years) with and without predisposition for psychosis. Main outcome measure: Psychotic symptoms at follow up as a function of cannabis use and predisposition for psychosis at baseline. Results: After adjustment for age, sex, socioeconomic status, urbanicity, childhood trauma, predisposition for psychosis at baseline, and use of other drugs, tobacco, and alcohol, cannabis use at baseline increased the cumulative incidence of psychotic symptoms at follow up four years later (adjusted odds ratio 1.67, 95% confidence interval 1.13 to 2.46). The effect of cannabis use was much stronger in those with any predisposition for psychosis at baseline (23.8% adjusted difference in risk, 95% confidence interval 7.9 to 39.7, P = 0.003) than in those without (5.6%, 0.4 to 10.8, P = 0.033). The risk difference in the “predisposition” group was significantly greater than the risk difference in the “no predisposition” group (test for interaction 18.2%, 1.6 to 34.8, P = 0.032). There was a dose-response relation with increasing frequency of cannabis use. Predisposition for psychosis at baseline did not significantly predict cannabis use four years later (adjusted odds ratio 1.42, 95% confidence interval 0.88 to 2.31). Conclusion: Cannabis use moderately increases the risk of psychotic symptoms in young people but has a much stronger effect in those with evidence of predisposition for psychosis.
5

Smoking and Nicotine Dependence

Nelson, Christopher B., Wittchen, Hans-Ulrich 03 December 2012 (has links) (PDF)
This paper describes the distribution of dependence criteria and diagnoses in a sample of 14- to 24-year-olds from Munich, Germany (n = 3,021; 71% response rate), evaluates differences between nondependent and dependent smokers and examines associations of smoking with other substances, affective and anxiety disorders. Assessment was made using the M-CIDI. The lifetime prevalence of DSM-IV nicotine dependence in the total sample is 19%, rising to 52% among regular smokers. No gender differences were seen in the progression from regular smoking to nicotine dependence, although men were more likely than women to initiate regular use. Analysis of daily cigarette use identified a significant dose-response relationship with the number of endorsed DSM-IV dependence criteria with unsuccessful cut-backs being the most prevalent criterion. As compared to nondependent smokers, dependent smokers were more likely to associate negative health effects with smoking and to have a desire to change and attempt a change in their pattern of use. Regular use of nicotine was found to be significantly associated with other substance and nonsubstance disorders, although dependent regular use was more strongly associated with these disorders than nondependent regular use. These results indicate that daily smoking is a behavior which is resistant to change despite an expressed desire and repeated cut-back attempts. Although initiation of regular smoking among nonsmokers does not occur frequently after the early twenties, the risk for dependent smoking among regular users persists into adulthood and is associated with a range of mental disorders.
6

Structure, Content and Reliability of the Munich-Composite International Diagnostic Interview (M-CIDI) Substance Use Sections

Lachner, Gabriele, Wittchen, Hans-Ulrich, Perkonigg, Axel, Holly, Alexandra, Schuster, Peter, Wunderlich, Ursula, Türk, Dilek, Garczynski, Ela, Pfister, Hildegard 22 November 2012 (has links) (PDF)
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.
7

Patterns of Use and Their Relationship to DSM-IV Abuse and Dependence of Alcohol among Adolescents and Young Adults

Holly, Alexandra, Wittchen, Hans-Ulrich 22 November 2012 (has links) (PDF)
First use and initiation of regular alcohol use has been frequently found to start in adolescence. However, only few studies have also investigated how many adolescents proceed during ages 14–24 to harmful drinking or even develop alcohol use disorders. This paper – using the EDSP baseline sample of 3,021 community respondents from the Munich area – examines the prevalence of use, abuse and dependence and investigates the dose/disorder relationship. Alcohol abuse was reported by 9.7% of respondents and alcohol dependence by 6.2%. Men were more likely to report an alcohol disorder than women, prevalence also increased in the older age cohorts. However, even among 14- to 17-year-olds a substantial proportion of respondents report high and regular consumption rates, the occurrence of abuse and dependence criteria and even a full dependence syndrome. There is however only a moderate association between average number of standard drinks consumed with the risk of developing abuse and dependence. In light of the substantial rates among adolescents and young adults the validity of DSM-IV alcohol disorder criteria is discussed.
8

Unterstützende Maßnahmen zur Raucherentwöhnung

Wittchen, Hans-Ulrich 01 February 2013 (has links) (PDF)
Aus der Einleitung: "Nahezu jeder zweite Deutsche war oder ist akutell regelmäßiger Raucher. Fast ein Viertel - in manchen Altersstufen sogar mehr - aller Adoleszenten und Erwachsenen sind nikotinabhängig oder stark gesundheitsgefährdete "starke Raucher" mit mehr als 20 Zigaretten pro Tag. Fast alle regelmäßigen Raucher wissen zwischenzeitlich, daß Rauchen gefährlich und gesundheitsschädlich ist; jeder zweite Raucher bezeichnet sich sogar selbst als "abhängig. 90% haben bereits mindestens einmal über zumindest einige Tage versucht aufzuhören - ohne Erfolg. [...]"
9

Mental disorders in ecstasy users: a prospective-longitudinal investigation

Lieb, Roselind, Schuetz, Christian G., Pfister, Hildegard, Sydow, Kirsten von, Wittchen, Hans-Ulrich 05 April 2013 (has links) (PDF)
Objectives: To investigate the relationship between ecstasy use and mental disorders in a representative sample of adolescents and young adults. Method: Data for this investigation were drawn from the Early Developmental Stages of Psychopathology (EDSP) study, an epidemiological-longitudinal study in which 14-24 year-olds were examined prospectively over a period of about 4 years. Results are based on N=2462 participants who completed the whole study period and for whom drug use behavior could be determined. Results: (1) Ecstasy users, compared with non-users, were at significantly increased risk of DSM-IV substance related disorders, including alcohol use disorders (52.6 vs. 15.6%; OR=5.6, 95% CI=3.8-8.1). Further, ecstasy users also had a higher risk of alcohol use disorders, when compared with users of other illicit substances (52.6 vs. 40.3%; OR=1.7, 95% CI=1.1-2.4). (2) Ecstasy users had significantly higher rates for almost all DSM-IV mental disorders examined when compared with non-users (any non-substance use disorder: 68.7 vs. 44.5%; OR=3.1, 95% CI=2.1-4.4) and compared with users of other illicit drugs (any non substance use disorder: 68.7 vs. 55.5%; OR=1.8, 95% CI=1.2-2.6). (3) Ecstasy users also reported significantly higher rates of prescription medicine use, though they did not use more medical services than non-drug users. (4) Analyses of temporal patterns of ecstasy use and disorder onset revealed that the first use of ecstasy was secondary to the onset of DSM-IV mental disorders in the majority of cases. Still, subjects with mental disorders at baseline also showed a significantly increased risk for initiation of ecstasy use during the 4-year follow-up period. Conclusions: Care should be taken in cross sectional studies in interpreting mental disorder signs and symptoms merely as a consequence of ecstasy use, as ecstasy use might be associated with the use of multiple substances, and onset of mental disorder is more likely to precede rather than to follow use of ecstasy and related substances.
10

Prevalence and age of onset for drug use in seven international sites: Results from the international consortium of psychiatric epidemiology

Vega, William A., Aguilar-Gaxiola, Sergio, Andrade, Laura, Bijl, Rob, Borges, Guilherme, Caraveo-Anduaga, Jorge J., DeWit, David J., Heeringa, Steven G., Kessler, Ronald C., Kolody, Bo, Merikangas, Kathleen R., Molnar, Beth E., Walters, Ellen E., Warner, Lynn A., Wittchen, Hans-Ulrich 08 April 2013 (has links) (PDF)
This study compares lifetime prevalence and age of first use (onset) for alcohol, cannabis, and other drugs in six international sites. Data from seven epidemiologic field surveys that used compatible instruments and study designs were compiled for cross-site analyses by the International Consortium of Psychiatric Epidemiology (ICPE). The world health organization’s composite international diagnostic instrument (WHO-CIDI) and additional items were used to ascertain drug use in each site. Lifetime use rates were estimated for alcohol, cannabis, and other illicit drugs. Survival analyses were used to estimate age of onset. Study settings and main results: use of alcohol twelve or more times ranged in descending order from the Netherlands (86.3%), United States (71.7%), Ontario, Canada (71.6%); São Paulo, Brazil (66.1%), Munich, Germany (64.9%), Fresno, California (USA) (51.9%), to Mexico City (43.2%). Use of cannabis five or more times in a lifetime ranged from 28.8 in the United States to 1.7% in Mexico City, and other drugs ranged from United States (19.4%) to Mexico City (1.7%). Age of first use was similar across study sites. This study demonstrates the fundamental uniformity of onset patterns by age as contrasted with wide variations in lifetime prevalences across sites. Study findings suggest that drug use patterns may change among emigrating populations from low consumption nations as a consequence of international resettlement in nations with higher rates. Methodological limitations of the study along with recommendations for future international comparative research are discussed.

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