Among 106,000 European adolescents, those who perceived the pandemic as negatively impacting their lives had significantly higher rates of cannabis use compared to those who felt positively impacted.
Adolescent health researchers, school counselors, crisis response planners, European public health officials
14% of European teens were negatively impacted, with higher cannabis use
What the researchers found
Fourteen percent of adolescents were classified as negatively impacted by COVID, with this group overrepresented among girls, older teens, and less affluent families. Negatively impacted adolescents had higher risk of cannabis use, smoking, and drunkenness compared to positively impacted peers. Countries with highest negative impact rates included Hungary, Cyprus, Greece, and Poland (>25%).
Why it matters
This 21-country study shows that subjective pandemic experience, not just objective exposure, predicted substance use. Understanding that self-perceived negative impact drives risk behaviors can inform future crisis response targeting vulnerable youth.
The numbers in context
106,221 adolescents from 21 countries. 14% negatively impacted, 42% positively impacted, 44% neutral. Negatively impacted group had higher cannabis, smoking, and drunkenness risk. Highest negative impact: Hungary, Cyprus, Greece, Poland (>25%).
How the study worked
Analysis of 106,221 adolescents aged 11-15 from the 2021/22 HBSC study across 21 European countries. Multilevel Generalized Latent Class Analysis identified groups by perceived pandemic impact, then examined substance use as outcomes.
What this study cannot tell us
Cross-sectional design collected in 2021/22 captures a single time point. Self-reported substance use and pandemic impact. Cannot determine whether negative impact caused substance use or vice versa. Country-level variation may reflect cultural differences in reporting.
How to read the evidence
Strong: very large multinational sample across 21 countries with sophisticated latent class analysis, though cross-sectional design
When this study was published
Published in 2025 using 2021/22 HBSC data from 21 European countries
The bigger picture
Major stressful events disproportionately affect certain youth populations, who then turn to substance use. The variation across countries suggests that societal and policy responses to crises can modify this relationship.
Questions still open
- Did cannabis use among negatively impacted teens persist after the pandemic? Which specific aspects of pandemic experience drove the substance use increase? Would mental health support during crises prevent this pattern?
Common questions
Did COVID increase teen cannabis use?
Which teens were most affected?
Read the original research
Self-perceived impact of COVID-19 and risk behaviors among adolescents: Results from the HBSC 2021/22 study in 21 European countries.
Addictive behaviors, 163, 108238
Citation
Berchialla, Paola; Canale, Natale; Kilibarda, Biljana; Comoretto, Rosanna Irene; Alexandrova-Karamanova, Anna; Baška, Tibor; Ter Bogt, Tom; Vieno, Alessio; Charrier, Lorena. (2025). Self-perceived impact of COVID-19 and risk behaviors among adolescents: Results from the HBSC 2021/22 study in 21 European countries.. Addictive behaviors, 163, 108238. https://doi.org/10.1016/j.addbeh.2024.108238
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