Evidence map›Paper›PMID 42459991›Full record

ArticleJournal of health monitoring2026

One year after partial legalisation in Germany: Trends in cannabis use among young people between 2008 and 2025.

Boris Orth, Stephanie Eckhardt, Anika Nitzsche

Abstract read
In one paragraph

Article in Journal of health monitoring, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Boris OrthFederal Institute of Public Health, Unit Q 3 - Evaluation, Methods, Research Data, Cologne, Germany.
Stephanie EckhardtFederal Institute of Public Health, Unit T 4 - Addiction Prevention, Cologne, Germany.
Anika NitzscheFederal Institute of Public Health, Unit Q 3 - Evaluation, Methods, Research Data, Cologne, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: One year after the partial legalisation of cannabis, the effects on cannabis use among young people in Germany were investigated. Methods: Based on twelve representative studies from 2008 to 2025, changes in the 12-month prevalence of cannabis use among 12- to 17-year-old adolescents and 18- to 25-year-old young adults were presented, and trends over time were estimated. Results: Among female and male adolescents as well as young women, there was no statistically significant change in the 12-month prevalence of cannabis use between 2023 and 2025. In contrast, a statistically significant increase in consumption was observed among young men. However, this does not represent a new development but rather continues a trend that has been observed in this group since 2008. Conclusions: One year after partial legalisation, there was no evidence of an immediate effect on the prevalence of cannabis use among young people in Germany. Further studies should monitor future developments.

Indexed as

AdolescentsCannabisCannabis useGermanyPartial legalisationPrevalenceTemporal trendsYoung adults

Identifiers

PMID42459991
PMCPMC13370656

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.