Genetic Epidemiology, Translational Neurogenomics, Psychiatric Genetics and Statistical Genetics Laboratories investigate the pattern of disease in families, particularly identical and non-identical twins, to assess the relative importance of genes and environment in a variety of important health problems.
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PMID
35815374
TITLE
Adolescent substance use and high school noncompletion: exploring the nature of the relationship using a discordant twin design.
ABSTRACT
BACKGROUND AND AIMS
Previous studies have demonstrated associations between substance use and reduced educational attainment; however, many were unable to account for potential confounding factors like genetics and the rearing environment. In the few studies that controlled for these factors, the substances assessed were limited to alcohol, cannabis, and tobacco. To address these limitations, we examined the relationship between adolescent use of seven kinds of substances, the number of additional substances used, and high school noncompletion within a large sample of Australian twins.
DESIGN
Previous studies have demonstrated associations between substance use and reduced educational attainment; however, many were unable to account for potential confounding factors like genetics and the rearing environment. In the few studies that controlled for these factors, the substances assessed were limited to alcohol, cannabis, and tobacco. To address these limitations, we examined the relationship between adolescent use of seven kinds of substances, the number of additional substances used, and high school noncompletion within a large sample of Australian twins. A series of two-level generalized mixed effects logistic regressions were conducted to examine associations between adolescent substance use and high school noncompletion.
SETTING
Previous studies have demonstrated associations between substance use and reduced educational attainment; however, many were unable to account for potential confounding factors like genetics and the rearing environment. In the few studies that controlled for these factors, the substances assessed were limited to alcohol, cannabis, and tobacco. To address these limitations, we examined the relationship between adolescent use of seven kinds of substances, the number of additional substances used, and high school noncompletion within a large sample of Australian twins. A series of two-level generalized mixed effects logistic regressions were conducted to examine associations between adolescent substance use and high school noncompletion. Australia.
PARTICIPANTS
Previous studies have demonstrated associations between substance use and reduced educational attainment; however, many were unable to account for potential confounding factors like genetics and the rearing environment. In the few studies that controlled for these factors, the substances assessed were limited to alcohol, cannabis, and tobacco. To address these limitations, we examined the relationship between adolescent use of seven kinds of substances, the number of additional substances used, and high school noncompletion within a large sample of Australian twins. A series of two-level generalized mixed effects logistic regressions were conducted to examine associations between adolescent substance use and high school noncompletion. Australia. A total of 9579 adult Australian twins from two cohorts of the Australian Twin Registry.
MEASUREMENTS
Previous studies have demonstrated associations between substance use and reduced educational attainment; however, many were unable to account for potential confounding factors like genetics and the rearing environment. In the few studies that controlled for these factors, the substances assessed were limited to alcohol, cannabis, and tobacco. To address these limitations, we examined the relationship between adolescent use of seven kinds of substances, the number of additional substances used, and high school noncompletion within a large sample of Australian twins. A series of two-level generalized mixed effects logistic regressions were conducted to examine associations between adolescent substance use and high school noncompletion. Australia. A total of 9579 adult Australian twins from two cohorts of the Australian Twin Registry. Assessments of high school completion, childhood major depression, conduct disorder symptoms, substance use initiation, demographics, and parental educational attainment using the Australian version of the Semi-Structured Assessment for the Genetics of Alcoholism.
FINDINGS
Previous studies have demonstrated associations between substance use and reduced educational attainment; however, many were unable to account for potential confounding factors like genetics and the rearing environment. In the few studies that controlled for these factors, the substances assessed were limited to alcohol, cannabis, and tobacco. To address these limitations, we examined the relationship between adolescent use of seven kinds of substances, the number of additional substances used, and high school noncompletion within a large sample of Australian twins. A series of two-level generalized mixed effects logistic regressions were conducted to examine associations between adolescent substance use and high school noncompletion. Australia. A total of 9579 adult Australian twins from two cohorts of the Australian Twin Registry. Assessments of high school completion, childhood major depression, conduct disorder symptoms, substance use initiation, demographics, and parental educational attainment using the Australian version of the Semi-Structured Assessment for the Genetics of Alcoholism. There were unique within-twin-pair effects of use of sedatives (odds ratio [OR] = 22.39 [95% confidence interval (CI) = 1.18-423.48]) and inhalants/solvents (OR = 10.46 [95% CI = 1.30-84.16]) on high school noncompletion. The number of substances used in adolescence was strongly associated with high school noncompletion across all discordant twin models (ORs from 1.50-2.32, Ps < 0.03).
CONCLUSIONS
Previous studies have demonstrated associations between substance use and reduced educational attainment; however, many were unable to account for potential confounding factors like genetics and the rearing environment. In the few studies that controlled for these factors, the substances assessed were limited to alcohol, cannabis, and tobacco. To address these limitations, we examined the relationship between adolescent use of seven kinds of substances, the number of additional substances used, and high school noncompletion within a large sample of Australian twins. A series of two-level generalized mixed effects logistic regressions were conducted to examine associations between adolescent substance use and high school noncompletion. Australia. A total of 9579 adult Australian twins from two cohorts of the Australian Twin Registry. Assessments of high school completion, childhood major depression, conduct disorder symptoms, substance use initiation, demographics, and parental educational attainment using the Australian version of the Semi-Structured Assessment for the Genetics of Alcoholism. There were unique within-twin-pair effects of use of sedatives (odds ratio [OR] = 22.39 [95% confidence interval (CI) = 1.18-423.48]) and inhalants/solvents (OR = 10.46 [95% CI = 1.30-84.16]) on high school noncompletion. The number of substances used in adolescence was strongly associated with high school noncompletion across all discordant twin models (ORs from 1.50-2.32, Ps < 0.03). In Australia, adolescent substance use appears to be associated with early school dropout, with the effects of any given substance largely because of the confounding factors of parental education, childhood conduct disorder symptoms, and use of other substances. Sedatives and inhalants/solvents have effects on high school noncompletion that cannot be explained by polysubstance use or familial factors.
© 2022 Society for the Study of Addiction.
DATE PUBLISHED
2023 Jan
HISTORY
PUBSTATUS PUBSTATUSDATE
received 2021/12/03
accepted 2022/06/22
pmc-release 2024/01/01
pubmed 2022/07/12 06:00
medline 2022/12/06 06:00
entrez 2022/07/11 04:33
AUTHORS
NAME COLLECTIVENAME LASTNAME FORENAME INITIALS AFFILIATION AFFILIATIONINFO
Davis CN Davis Christal N CN Department of Psychological Sciences, University of Missouri, Columbia, MO, USA.
Gizer IR Gizer Ian R IR Department of Psychological Sciences, University of Missouri, Columbia, MO, USA.
Lynskey MT Lynskey Michael T MT King's College London Institute of Psychiatry, Psychology, and Neuroscience, London, UK.
Statham DJ Statham Dixie J DJ Federation University, Ballarat, Australia.
Heath AC Heath Andrew C AC Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, USA.
Martin NG Martin Nicholas G NG QIMR Berghofer Medical Research Institute, Brisbane, Australia.
Slutske WS Slutske Wendy S WS Center for Tobacco Research and Intervention and Department of Family Medicine and Community Health, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA.
INVESTIGATORS
JOURNAL
VOLUME: 118
ISSUE: 1
TITLE: Addiction (Abingdon, England)
ISOABBREVIATION: Addiction
YEAR: 2023
MONTH: Jan
DAY:
MEDLINEDATE:
SEASON:
CITEDMEDIUM: Internet
ISSN: 1360-0443
ISSNTYPE: Electronic
MEDLINE JOURNAL
MEDLINETA: Addiction
COUNTRY: England
ISSNLINKING: 0965-2140
NLMUNIQUEID: 9304118
PUBLICATION TYPE
PUBLICATIONTYPE TEXT
Journal Article
Research Support, N.I.H., Extramural
COMMENTS AND CORRECTIONS
GRANTS
GRANTID AGENCY COUNTRY
R01 DA018267 NIDA NIH HHS United States
GENERAL NOTE
KEYWORDS
KEYWORD
Discordant twin design
educational attainment
inhalant use
polysubstance use
sedative use
solvent use
substance use
substance use adolescence
MESH HEADINGS
DESCRIPTORNAME QUALIFIERNAME
Adult
Adolescent
Humans
Child
Australia epidemiology
Substance-Related Disorders epidemiology
Twins epidemiology
Hypnotics and Sedatives epidemiology
Solvents epidemiology
SUPPLEMENTARY MESH
GENE SYMBOLS
CHEMICALS
REGISTRYNUMBER NAMEOFSUBSTANCE
0 Hypnotics and Sedatives
0 Solvents
OTHER ID's