Lee Strunin1, Alejandro Díaz-Martínez2, L Rosa Díaz-Martínez3, Timothy Heeren4, Clara Chen5, Michael Winter5, Seth Kuranz1, Carlos A Hernández-Ávila6, Héctor Fernández-Varela7, Cuauhtémoc Solís-Torres7. 1. Department of Community Health Sciences, Boston University School of Public Health, 801 Massachusetts Ave., Boston, MA 02118, USA. 2. Department of Psychiatry and Mental Health, Faculty of Medicine, National Autonomous University of Mexico, Edifico 'F' Primer Piso, Circuito Escolar S/N, Ciudad Universitaria, Delegación Coyoacan, México,D.F.04510, Mexico. 3. Department of Psychiatry and Mental Health, Faculty of Medicine, National Autonomous University of Mexico/National Institute on Psychiatry Ramón de la Fuente Muñíz, Calzada México-Xochimilco no. 101, Colonia San Lorenzo Huipulco, Delegacion Tlalpan, México, D.F.14570, Mexico. 4. Department of Biostatistics, Boston University School of Public Health, 801 Massachusetts Ave., Boston, MA 02118, USA. 5. Data Coordinating Center, Boston University School of Public Health, 801 Massachusetts Ave., Boston, MA 02118, USA. 6. Department of Psychiatry and Alcohol Research Center, University of Connecticut School of Medicine, 263 Farmington Ave., Farmington, CT 06030, USA. 7. General Medical Services, National Autonomous University of Mexico, Circuito Escolar S-N, Ciudad Universitaria, Delegación Coyoacan, México, D.F.04510, Mexico.
Abstract
AIMS: This study aimed to examine alcohol, tobacco or marijuana use onset and associations between age of onset and current use, and between age of onset and current polysubstance use among a sample of Mexican young people aged 17-20 years. METHODS: Alcohol, tobacco, marijuana and other substance use were identified in a 2012 cross-sectional survey of male and female students entering first year university in Mexico City. Chi-square tests and logistic regression models examined associations between gender, age of onset, order of onset, family substance use and current polysubstance use among 22,224 students. RESULTS: The largest proportions of males and females initiated alcohol at age 15, tobacco at ages 15-16 and marijuana at ages 16-17. Earlier alcohol and tobacco initiation was associated with past 30-day use of the same substance. Gender differences in alcohol and tobacco use were small but males were significantly more likely than females to use marijuana and be polysubstance users. Family substance use was associated with earlier onset. There was a significant association between the earliest age of any of the three substances and current polysubstance use. CONCLUSIONS: A number of contextual and cultural factors in Mexico may be contributing to early onset, continued use and polysubstance use and deserve attention in research and by prevention programs.
AIMS: This study aimed to examine alcohol, tobacco or marijuana use onset and associations between age of onset and current use, and between age of onset and current polysubstance use among a sample of Mexican young people aged 17-20 years. METHODS: Alcohol, tobacco, marijuana and other substance use were identified in a 2012 cross-sectional survey of male and female students entering first year university in Mexico City. Chi-square tests and logistic regression models examined associations between gender, age of onset, order of onset, family substance use and current polysubstance use among 22,224 students. RESULTS: The largest proportions of males and females initiated alcohol at age 15, tobacco at ages 15-16 and marijuana at ages 16-17. Earlier alcohol and tobacco initiation was associated with past 30-day use of the same substance. Gender differences in alcohol and tobacco use were small but males were significantly more likely than females to use marijuana and be polysubstance users. Family substance use was associated with earlier onset. There was a significant association between the earliest age of any of the three substances and current polysubstance use. CONCLUSIONS: A number of contextual and cultural factors in Mexico may be contributing to early onset, continued use and polysubstance use and deserve attention in research and by prevention programs.
Authors: Kathleen Shyhalla; Danielle M Smith; Angela Diaz; Anne Nucci-Sack; Mary Guillot; Dominic Hollman; Maciej L Goniewicz; Richard J O'Connor; Viswanathan Shankar; Robert D Burk; Nicolas F Schlecht Journal: Addict Behav Date: 2021-05-24 Impact factor: 4.591
Authors: Teresa N Brockie; Jacquelyn C Campbell; Gail Dana-Sacco; Jason Farley; Harolyn M E Belcher; Joan Kub; Katie E Nelson; Jerreed D Ivanich; Li Yang; Gwenyth Wallen; Lawrence Wetsit; Holly C Wilcox Journal: Prev Sci Date: 2022-06-01