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RESEARCH ARTICLE

Sex differences in alcohol and other substance use in sexual contexts among adolescents: an observational study

Helena González-Casals A B C , Albert Espelt https://orcid.org/0000-0002-8625-4356 D E * , Marina Bosque-Prous C D E , Judit Rogés C D F , Marina Robles-Muñoz C D , Joan Colom G , Jordi Casabona A B E , María José Belza E H and Cinta Folch A B E
+ Author Affiliations
- Author Affiliations

A Centre d’Estudis Epidemiològics sobre les Infeccions de Transmissió Sexual i Sida de Catalunya (CEEISCAT), Departament de Salut, Generalitat de Catalunya, Carretera de Canyet, s/n, Badalona 08916, Spain. Email: hgonzalez@iconcologia.net, jcasabona@iconcologia.net, cfolch@iconcologia.net

B Institut d’Investigació Germans Trias i Pujol (IGTP), Campus Can Ruti, Badalona, Spain.

C Research Group in Epidemiology and Public Health in the Digital Health context (Epi4Health), Faculty of Health Sciences, Universitat Oberta de Catalunya, Rambla del Poblenou, 156, Barcelona 08018, Spain. Email: mbosquep@uoc.edu, mroblesmu@uoc.edu

D Research Group in Epidemiology and Public Health in the Digital Health context (Epi4Health), Department of Psychobiology and Methodology in Health Sciences, Universitat Autònoma de Barcelona (UAB), C/de Ca n’Altayó, s/n, Bellaterra 08193, Spain.

E Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Avenue Monforte de Lemos, 3-5, Pabellón 11, Planta 0, Madrid 28029, Spain. Email: mbelza@isciii.es

F Research Group in Epidemiology and Public Health in the Digital Health context (Epi4Health), Faculty of Health Sciences of Manresa, Universitat de Vic – Universitat Central de Catalunya (UVic-UCC), Avenue Universitària, 4-6, Manresa 08242, Spain. Email: jroges@umanresa.cat

G Subdirecció General d’Addiccions, VIH, Infeccions de Transmissió Sexual i Hepatitis Víriques, Agència de Salut Pública de Catalunya, Barcelona, Spain. Email: joan.colom@gencat.cat

H Escuela Nacional de Sanidad, Instituto de Salud Carlos III, Madrid, Spain.

* Correspondence to: albert.espelt@uab.cat

Handling Editor: Eric P.F. Chow

Sexual Health 22, SH24153 https://doi.org/10.1071/SH24153
Submitted: 5 August 2024  Accepted: 20 January 2025  Published: 6 February 2025

© 2025 The Author(s) (or their employer(s)). Published by CSIRO Publishing

Abstract

Background

There is a co-occurrence of adolescents’ substance use and sexual practices, with an important impact on their health and health behaviours; however, limited research is conducted with adolescents. The aim of this study was to estimate the prevalence of substance use (alcohol and/or other substances) in sexual contexts and to identify its associated factors among adolescents, comparing boys and girls.

Methods

Cross-sectional study with data from 6352 adolescents aged 14­­­–18 years from the DESKcohort project. Prevalence of alcohol and/or other substance use in sexual contexts (OSUSC) stratified by sex were calculated, according to axes of inequality, psychosocial factors, and sexual health and health variables. Poisson regression models with robust variance were calculated to analyse potential associations with independent variables.

Results

Girls (51.4% of the sample) reported a higher prevalence of alcohol use in sexual contexts than boys (43.9% vs 33.9%, P < 0.001), whereas OSUSC was reported by 12–14% of adolescents. Alcohol and/or OSUSC were associated to several risk practices, such as having multiple sexual partners and inconsistent condom use, for both sexes. Also, sexual minority orientation students, natives, and students with disadvantaged socioeconomic positions (SEPs) presented higher prevalences of substance use in sexual contexts.

Conclusions

These findings suggest that substance use in sexual contexts reflects a broader pattern of co-occurring risky behaviours rather than intentional sexualised substance use. Some vulnerable groups include girls, adolescents with a minority sexual orientation, and students with disadvantaged SEPs. These findings underscore the need for holistic interventions targeting adolescents’ health, addressing substance use and sexual risk behaviours simultaneously to reduce potential consequences such as unplanned pregnancies and sexually transmitted infections.

Keywords: adolescents, alcohol use in sexual contexts, axes of inequality, gender differences, other substance use in sexual contexts, sexual risk behaviours, socioeconomic inequalities, substance use in sexual contexts.

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