European Teens Who Felt Hardest Hit by COVID Used More Cannabis
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.
Quick Facts
What This Study 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%).
Key Numbers
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 They Did This
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.
Why This Research 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 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.
What This Study Doesn't 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.
Questions This Raises
- ?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?
Trust & Context
- Key Stat:
- 14% of European teens were negatively impacted, with higher cannabis use
- Evidence Grade:
- Strong: very large multinational sample across 21 countries with sophisticated latent class analysis, though cross-sectional design
- Study Age:
- Published in 2025 using 2021/22 HBSC data from 21 European countries
- Original Title:
- Self-perceived impact of COVID-19 and risk behaviors among adolescents: Results from the HBSC 2021/22 study in 21 European countries.
- Published In:
- Addictive behaviors, 163, 108238 (2025)
- Authors:
- Berchialla, Paola, Canale, Natale, Kilibarda, Biljana, Comoretto, Rosanna Irene, Alexandrova-Karamanova, Anna, Baška, Tibor, Ter Bogt, Tom, Vieno, Alessio, Charrier, Lorena
- Database ID:
- RTHC-06047
Evidence Hierarchy
A snapshot of a population at one point in time.
What do these levels mean? →Frequently Asked Questions
Did COVID increase teen cannabis use?
Teens who perceived the pandemic as negatively impacting their lives had higher cannabis use rates. However, 42% of teens reported a positive pandemic impact and 44% were neutral, so the effect was concentrated among the 14% who felt most negatively affected.
Which teens were most affected?
Girls, older adolescents, and those from less affluent families were overrepresented in the negatively impacted group. Country-level variation was substantial, with Hungary, Cyprus, Greece, and Poland showing the highest rates of negative impact (>25%).
Read More on RethinkTHC
Cite This Study
https://rethinkthc.com/research/RTHC-06047APA
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
MLA
Berchialla, Paola, et al. "Self-perceived impact of COVID-19 and risk behaviors among adolescents: Results from the HBSC 2021/22 study in 21 European countries.." Addictive behaviors, 2025. https://doi.org/10.1016/j.addbeh.2024.108238
RethinkTHC
RethinkTHC Research Database. "Self-perceived impact of COVID-19 and risk behaviors among a..." RTHC-06047. Retrieved from https://rethinkthc.com/research/berchialla-2025-selfperceived-impact-of-covid19
Access the Original Study
Study data sourced from PubMed, a service of the U.S. National Library of Medicine, National Institutes of Health.
This study breakdown was produced by the RethinkTHC research team. We analyze and report published research findings without making health recommendations. All interpretations are based solely on the published abstract and study data.