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School performance and substance use disorders in early adulthood among non-immigrant and immigrant populations in Sweden

Okuyama, Kenta LU ; Larsson Lönn, Sara LU ; Khoshnood, Ardavan M LU orcid ; Sundquist, Jan LU and Sundquist, Kristina LU (2025) In European Journal of Public Health p.1-7
Abstract

Individuals with immigrant background generally perform less well in school than non-immigrants. Performing well in school may decrease the risk of substance use disorder (SUD). We investigated whether higher school performance is associated with a decreased risk of SUD in early adulthood among immigrants and non-immigrants and whether subsequent educational attainment and employment status partly explain the association. We used nationwide longitudinal Swedish data on 1 365 634 individuals born 1985-2000. Study individuals were categorized as non-immigrants, second-generation immigrants, and first-generation immigrants. School performance was based on the final school grades of compulsory education when most individuals were 16 years... (More)

Individuals with immigrant background generally perform less well in school than non-immigrants. Performing well in school may decrease the risk of substance use disorder (SUD). We investigated whether higher school performance is associated with a decreased risk of SUD in early adulthood among immigrants and non-immigrants and whether subsequent educational attainment and employment status partly explain the association. We used nationwide longitudinal Swedish data on 1 365 634 individuals born 1985-2000. Study individuals were categorized as non-immigrants, second-generation immigrants, and first-generation immigrants. School performance was based on the final school grades of compulsory education when most individuals were 16 years old. SUD was assessed between 20 and 30 years old using medical/legal registers. Cox proportional hazard models were used to examine the association between school performance and SUD by immigrant status, and whether it was partly explained by subsequent educational attainment and employment status. Higher school performance was associated with a decreased risk of SUD among all non-immigrant and immigrant groups where most immigrant groups had higher SUD risks. One standard deviation increase in school grades was associated with a 30%-37% decreased hazard of SUD. The significant hazard ratios varied between 0.63 and 0.70. The association between school performance and SUD was partly explained by subsequent educational attainment and employment status. Improving school performance during compulsory education may prevent SUD in early adulthood, particularly among immigrants who had higher risks. Securing subsequent educational attainment and employment could be additional prevention strategies against SUD.

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Please use this url to cite or link to this publication:
author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
epub
subject
keywords
School, school performance, substance abuse, immigrant background
in
European Journal of Public Health
article number
ckaf164
pages
1 - 7
publisher
Oxford University Press
external identifiers
  • pmid:40986318
ISSN
1101-1262
DOI
10.1093/eurpub/ckaf164
language
English
LU publication?
yes
additional info
© The Author(s) 2025. Published by Oxford University Press on behalf of the European Public Health Association.
id
8d77abe6-2b8f-4000-ac63-8ce2d3167f4c
date added to LUP
2025-09-24 22:16:39
date last changed
2025-09-26 02:59:13
@article{8d77abe6-2b8f-4000-ac63-8ce2d3167f4c,
  abstract     = {{<p>Individuals with immigrant background generally perform less well in school than non-immigrants. Performing well in school may decrease the risk of substance use disorder (SUD). We investigated whether higher school performance is associated with a decreased risk of SUD in early adulthood among immigrants and non-immigrants and whether subsequent educational attainment and employment status partly explain the association. We used nationwide longitudinal Swedish data on 1 365 634 individuals born 1985-2000. Study individuals were categorized as non-immigrants, second-generation immigrants, and first-generation immigrants. School performance was based on the final school grades of compulsory education when most individuals were 16 years old. SUD was assessed between 20 and 30 years old using medical/legal registers. Cox proportional hazard models were used to examine the association between school performance and SUD by immigrant status, and whether it was partly explained by subsequent educational attainment and employment status. Higher school performance was associated with a decreased risk of SUD among all non-immigrant and immigrant groups where most immigrant groups had higher SUD risks. One standard deviation increase in school grades was associated with a 30%-37% decreased hazard of SUD. The significant hazard ratios varied between 0.63 and 0.70. The association between school performance and SUD was partly explained by subsequent educational attainment and employment status. Improving school performance during compulsory education may prevent SUD in early adulthood, particularly among immigrants who had higher risks. Securing subsequent educational attainment and employment could be additional prevention strategies against SUD.</p>}},
  author       = {{Okuyama, Kenta and Larsson Lönn, Sara and Khoshnood, Ardavan M and Sundquist, Jan and Sundquist, Kristina}},
  issn         = {{1101-1262}},
  keywords     = {{School; school performance; substance abuse; immigrant background}},
  language     = {{eng}},
  month        = {{09}},
  pages        = {{1--7}},
  publisher    = {{Oxford University Press}},
  series       = {{European Journal of Public Health}},
  title        = {{School performance and substance use disorders in early adulthood among non-immigrant and immigrant populations in Sweden}},
  url          = {{http://dx.doi.org/10.1093/eurpub/ckaf164}},
  doi          = {{10.1093/eurpub/ckaf164}},
  year         = {{2025}},
}