scholarly journals Developmental Trajectories of Tobacco/Nicotine and Cannabis Use and Patterns of Product Co-use in Young Adulthood

2020 ◽  
Vol 13 ◽  
pp. 1179173X2094927
Author(s):  
Michael S Dunbar ◽  
Jordan P Davis ◽  
Joan S Tucker ◽  
Rachana Seelam ◽  
Regina A Shih ◽  
...  
Keyword(s):  
Young People ◽  
Young Adulthood ◽  
Developmental Trajectories ◽  
Cannabis Use ◽  
Rapid Progression ◽  
Online Surveys ◽  
Developmental Patterns ◽  
Growth Mixture Models ◽  
Growth Mixture ◽  
Early Progression

Introduction: Concurrent co-use of tobacco/nicotine and cannabis (T/C) products is common among young people and may increase risks for negative health and psychosocial outcomes, but little is known about developmental patterns of T/C co-use. This study aimed to identify distinct trajectory classes of concurrent T/C co-use from ages 16 to 21 and compare groups on T/C co-use behaviors in young adulthood. Methods: Participants (n = 2497) reported T/C use on annual online surveys from 2015 to 2019 (ages 16-22). We used parallel process growth mixture models to model simultaneous trajectories of past-month cigarette, e-cigarette, smokeless tobacco, and cannabis use and identify latent classes of T/C trajectories. Classes were then compared on types and number of T/C products used and types of T/C co-use in young adulthood. Results: Models revealed 4 T/C classes: Low/No T/C Use, Early Concurrent T/C Co-use, Late Concurrent T/C Co-use, and Tobacco Quitters/Cannabis Maintainers. Compared to other classes, the Early Concurrent T/C Co-use group—individuals with rapid progression to concurrent T/C co-use during adolescence—were more likely to report poly-tobacco use, poly-cannabis use, same-occasion sequential T/C co-use and T/C co-administration (ie, mixing T/C) of both combustible and vaping products in young adulthood. Conclusion: Early progression to concurrent T/C co-use in adolescence is prospectively linked to poly-product use and co-use of T/C products in young adulthood. Prevention efforts targeting co-use of T/C products in adolescence may help to reduce riskier patterns of T/C use and co-use in young adulthood.

scholarly journals Joint developmental trajectories of internalizing and externalizing disorders between childhood and adolescence

2016 ◽  
Vol 29 (3) ◽  
pp. 919-928 ◽  
Author(s):  
Michel G. Nivard ◽  
Gitta H. Lubke ◽  
Conor V. Dolan ◽  
David M. Evans ◽  
Beate St. Pourcain ◽  
...  
Keyword(s):  
Developmental Trajectories ◽  
Specific Treatment ◽  
Externalizing Disorders ◽  
Childhood And Adolescence ◽  
Multinomial Regression ◽  
Treatment Needs ◽  
Growth Mixture Models ◽  
Growth Mixture ◽  
Dsm Iv ◽  
Internalizing And Externalizing

AbstractThis study sought to identify trajectories of DSM-IV based internalizing (INT) and externalizing (EXT) problem scores across childhood and adolescence and to provide insight into the comorbidity by modeling the co-occurrence of INT and EXT trajectories. INT and EXT were measured repeatedly between age 7 and age 15 years in over 7,000 children and analyzed using growth mixture models. Five trajectories were identified for both INT and EXT, including very low, low, decreasing, and increasing trajectories. In addition, an adolescent onset trajectory was identified for INT and a stable high trajectory was identified for EXT. Multinomial regression showed that similar EXT and INT trajectories were associated. However, the adolescent onset INT trajectory was independent of high EXT trajectories, and persisting EXT was mainly associated with decreasing INT. Sex and early life environmental risk factors predicted EXT and, to a lesser extent, INT trajectories. The association between trajectories indicates the need to consider comorbidity when a child presents with INT or EXT disorders, particularly when symptoms start early. This is less necessary when INT symptoms start at adolescence. Future studies should investigate the etiology of co-occurring INT and EXT and the specific treatment needs of these severely affected children.

81 Identifying and predicting novel classes of long-term disease trajectories for patients with juvenile dermatomyositis using growth mixture models

2019 ◽  
Author(s):  
Claire Deakin ◽  
Charalampia Papadopoulou ◽  
Muthana Al Obaidi ◽  
Clarissa Pilkington ◽  
Lucy Wedderburn ◽  
...  
Keyword(s):  
Mixture Models ◽  
Juvenile Dermatomyositis ◽  
Growth Mixture Models ◽  
Growth Mixture

Transition through smoking stages in adolescents: an innovative perspective using growth mixture models

2021 ◽  
Author(s):  
Asghar MohammadpourAsl ◽  
Nazanin Masoudi ◽  
Nasrin Jafari ◽  
Samane Yaghoubi ◽  
Farzaneh Hamidi ◽  
...  
Keyword(s):  
Mixture Models ◽  
Growth Mixture Models ◽  
Growth Mixture

Modeling trend changes of mean annual exposure to PM2.5 particles in the Middle East countries via growth mixture models

2021 ◽  
Vol 14 (7) ◽  
Author(s):  
Gashtasb Mardani ◽  
Mahdiyeh Alikhani Faradonbeh ◽  
Zahra Fatahian Kelishadrokhi ◽  
Hadi Raeisi Shahraki
Keyword(s):  
Middle East ◽  
Mixture Models ◽  
Growth Mixture Models ◽  
Growth Mixture ◽  
Middle East Countries

Developmental trajectories of adolescent cannabis use and their relationship to young adult social and behavioural adjustment: A longitudinal study of Australian youth

2016 ◽  
Vol 53 ◽  
pp. 11-18 ◽  
Author(s):  
Kirsty E. Scholes-Balog ◽  
Sheryl A. Hemphill ◽  
Tracy J. Evans-Whipp ◽  
John W. Toumbourou ◽  
George C. Patton
Keyword(s):  
Longitudinal Study ◽  
Young Adult ◽  
Developmental Trajectories ◽  
Cannabis Use ◽  
Behavioural Adjustment

The Experience of Emerging Adulthood Among Street-Involved Youth

2021 ◽  
Author(s):  
Doug Magnuson ◽  
Mikael Jansson ◽  
Cecilia Benoit
Keyword(s):  
Young People ◽  
Emerging Adulthood ◽  
Harm Reduction ◽  
Young Adulthood ◽  
Formal Education ◽  
Early Adulthood ◽  
Underground Economy ◽  
Family Learning ◽  
Past Experiences ◽  
Access To Shelter

The Experience of Emerging Adulthood Among Street-Involved Youth tells the story of young people who were street-involved from their early to middle teens and into their 20s, particularly their experiences of emerging adulthood while struggling toward young adulthood and independence. These youth experienced emerging and early adulthood earlier than other youth while living independently of guardians, detached from formal education, and working in the underground economy. After leaving their guardians they were choosing how to be different than their family, learning to cope with instability, and enjoying and protecting their independence, and they experienced some satisfaction with their ability to manage. As one youth stated, “away from my family, I learned that I was not stupid.” Their success was facilitated by harm reduction services, like access to shelter and food, that gave them time to experiment with living independently and to practice being responsible for themselves and others. Later they began to prefer nonstreet identities, and they began to think about their desires for the future. The distance between their current lives and those aspirations was the experience of feeling “in-between,” and progress toward their aspirations was often complicated by past experiences of trauma, current experiences of exclusion, coping with substances, and the mismatch between their needs and available services.

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