Browsing by Author "Vega, William A."

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Barriers to accessing substance abuse treatment in Mexico: national comparative analysis by migration status
(BioMed Central, 2014) Guerrero Erick, G.; Villatoro, Jorge Ameth; Kong, Yinfei; Fleiz, Clara; Vega, William A.; Strathdee, Steffanie A.; Medina-Mora, Maria Elena; School of Social Work, University of Southern California, 655 West 34th Street, Los Angeles, CA 90089, USA.; erickgue@usc.edu
Comorbidity of substance use disorders with mood and anxiety disorders: Results of the international consortium in psychiatric epidemiology
(1998) Merikangas, Kathleen R.; Mehta, Rajni L.; Molnar, Beth E.; Walters, Ellen E.; Swendsen, Joel D.; Aguilar-Gaxiola, Sergio; Bijl, Rob; Borges, Guilherme; Caraveo-Anduaga, Jorge J.; DeWit, David J.; Kolody, Bohdan; Vega, William A.; Wittchen, Hans-Ulrich; Kessler, Ronald C.; Yale University School of Medicine
Illicit drug use research in Latin America: Epidemiology, service use, and HIV
(ELSEVIER IRELAND LTD, ELSEVIER HOUSE, BROOKVALE PLAZA, EAST PARK SHANNON, CO, CLARE, 00000, IRELAND, 2006) Aguilar-Gaxiola, Sergio; Medina-Mora, María Elena; Magana, Cristina G.; Vega, William A.; Alejo-Garcia, Christina; Quintanar, Tania Real; Vázquez, Lucia; Ballesteros, Patricia D.; Ibarra, Juan; Rosales, Heidi; Inst Nacl Psiquiatria Ramon de la Fuente, Direcc Invest Epidemiol & Psicosociales, Mexico City 14370, DF, Mexico; aguilera@imp.edu.mx
The purpose of this article is to review the research status of illicit drug use and its data sources in Latin America, with particular attention to the research that has been produced in the past 15 years in epidemiology of illicit drug use, services utilization, and relationship between HIV and drug use. This article complements the series of articles that are published in this same volume which examine drug abuse research (epidemiology, prevention, and treatment) and HIV prevention in Latinos residing in the United States. This review resulted from extensive international and national searches using the following databases: Current Contents Connect, Social and Behavioral Sciences; EBSCO; EMBASE(R) Psychiatry; Evidence Based Medicine (through OVID); Medline, Neurosciences, PsychINFO, Pubmed, BIREME/PAHO/WHO - Virtual Health Library, and SciELO. Papers selected for further review included those published in Spanish, English, and Portuguese in peer-reviewed journals. From the evidence reviewed, it was found that the published research literature is heavily concentrated on descriptive epidemiologic surveys, providing primarily prevalence rates and general information on associated factors. Evidence on patterns of service delivery and HIV prevention and treatment is limited. The cumulative scope of this research clearly indicates variability in quantity and quality of research across Latin American nations and the need for greater uniformity in data collection elements, methodologies, and the creation of international collaborative research networks. (c) 2006 Elsevier Ireland Ltd. All rights reserved.
Mental-substance comorbidities in the ICPE surveys
(Helsinki : Helsinki University Central Hospital. Psychiatric Clinic, 2001) Kessler, Ronald C.; Aguilar-Gaxiola, Sergio; Andrade, Laura; Bijl, Rob; Borges, Guilherme; Caraveo-Anduaga, Jorge J.; DeWit, David J.; Kolody, Bo; Merikangas, Kathleen R.; Molnar, Beth E.; Vega, William A.; Walters, Ellen E.; Hans-Ulrich, Wittchen; Bedirhan, Ustun; Harvard Medical School, Department of Health Care Policy, 180 Longwood Avenue Boston, MA, 02115 U.S.A.; kessler@hcp.med.harvard.edu
Data are presented from seven community epidemiology surveys carried out in six countries in North America (Canada and the United States), Latin America (Brazil and Mexico), and Europe (Germany and the Netherlands) exploring patterns of comorbidity between mental disorders and substance use disorders. The surveys have a combined sample size of 28,658 respondents. Results are consistent across the surveys in showing that strong comorbidities exist between mental disorders and substance use disorders, that mental disorders are typically temporally primary (i.e., have earlier ages of onset than substance use disorders) in these comorbid pairs, and that primary mental disorders are significant predictors of the subsequent first onset of substance use disorders. Only active mental disorders, not remitted disorders, predict subsequent substance use, problems, and dependence, arguing indirectly that there is something about the mental disorders themselves rather than about determinants of these disorders, that promotes substance disorders. Decomposition shows that mental disorders are less powerful predictors of first drug use than of progressing from use to problem use and from problem use to dependence. Simulations suggest that primary mental disorders are associated with 54.7% of all drug dependence among men and 47.8% among women in these surveys. Conduct disorder and adult antisocial behavior are responsible for these cases among men, while anxiety disorders and mood disorders are also important among women. These results suggest that early interventions to treat mental disorders might be affective in reducing the number of people who would otherwise become dependent on drugs.
Patterns and predictors of treatment seeking after onset of a substance use disorder
(2001) Kessler, Ronald C.; Aguilar-Gaxiola, Sergio; Berglund, Patricia A.; Caraveo-Anduaga, Jorge J.; DeWit, David J.; Greenfield, Shelly F.; Kolody, Bohdan; Olfson, Mark; Vega, William A.; Department of Health Care Policy, Harvard Medical School, 180 Longwood Ave, Boston, MA 02115, USA.; kessler@hcp.med.harvard.edu
Prevalence and age of onset for drug use in seven international sites: results from the international consortium of psychiatric epidemiology
(Lausanne, Elsevier Sequoia, 2002) 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.; Hans-Ulrich, Wittchen; Institute for Quality, Research, and Training, Robert Wood Johnson Medical School-UMDNJ, 335 George Street, 3rd Floor, Liberty Plaza, New Brunswick, NJ 08901, USA; vegawa@umdnj.edu
The International Consortium in Psychiatric Epidemiology
(Praha : Tigis, 2000) Kessler, Ronald C.; Aguilar-Gaxiola, Sergio; Alegria, Margarita; Andrade, Laura; Bijl, Rob; Caraveo-Anduaga, Jorge J.; DeWitt, David J.; Kolody, Bohdan; Ustun, T. Bedirhan; Vega, William A.; Hans-Ulrich, Wittchen; Harvard Medical School, Departament of Health Care Policy, 180 Longwood Avenue, Boston, MA, USA 02115
We present an overview of the ICPE´s activities during its first years of existence, and preliminary results from our first major collaborative ICPE studies focused on cross-national similarities and differences in pattern of substance use in six countries. In conclusion, we discuss the Consortium’s future directions and planned activities associated with our year 200 initiative (World Mental Health 2000).