Evidence map›Paper›PMID 42701112›Full record

ArticleScientific reports2026

Ecological momentary insights into cannabis use and its contexts: a pre-post legalization study in Germany.

Louisa Diallo, Gianna Spitta, Samanda Krasniqi, Nadja Samia Bahr, Sabrina Doerr, Dominic Reichert, Markus Reichert, Jan-Luca Wiedenhoeft, Ulrich Ebner Priemer, Tobias Banaschewski and 3 more

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Article in Scientific reports, 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
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0citing papers in PubMed
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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

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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

13 authors.

Louisa Diallo *Department of Psychiatry and Neurosciences, Charité Campus Mitte, Charité - Universitätsmedizin Berlin, Charitéplatz 1, Berlin, 10117, Germany.
Gianna Spitta *Department of Psychiatry and Neurosciences, Charité Campus Mitte, Charité - Universitätsmedizin Berlin, Charitéplatz 1, Berlin, 10117, Germany. gianna.spitta@charite.de.ORCID 0000-0001-9222-3591
Samanda KrasniqiDepartment of Psychiatry and Neurosciences, Charité Campus Mitte, Charité - Universitätsmedizin Berlin, Charitéplatz 1, Berlin, 10117, Germany.
Nadja Samia BahrDepartment of Psychiatry and Neurosciences, Charité Campus Mitte, Charité - Universitätsmedizin Berlin, Charitéplatz 1, Berlin, 10117, Germany.
Sabrina DoerrDepartment of Psychiatry and Neurosciences, Charité Campus Mitte, Charité - Universitätsmedizin Berlin, Charitéplatz 1, Berlin, 10117, Germany.
Dominic ReichertDepartment of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Mannheim, Germany.
Markus ReichertDepartment of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Mannheim, Germany.
Jan-Luca WiedenhoeftDepartment of Social and Preventive Medicine, University of Potsdam, Potsdam, Germany.
Ulrich Ebner PriemerGerman Center for Mental Health (DZPG), Berlin, Germany.
Tobias BanaschewskiGerman Center for Mental Health (DZPG), Berlin, Germany.
Andreas HeinzGerman Center for Mental Health (DZPG), Berlin, Germany.
Fabian Arntz *German Center for Mental Health (DZPG), Berlin, Germany.
Michael A Rapp *German Center for Mental Health (DZPG), Berlin, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Globally, cannabis ranks third in psychoactive substance prevalence after nicotine and alcohol, with heavy use linked to psychosis, anxiety, and depression. However, real-time data on how legal reforms influence consumption remain scarce. This Ecological Momentary Assessment (EMA) study analyzed daily cannabis use patterns before and after Germany's recreational cannabis decriminalization in April 2024 in 49 individuals (34.7% women, age 33.8 ± 11 years). Following the legal reform, a selective increase in consumed amounts among younger individuals (β = 0.01, 95%CI = 0.00-0.02, z = 3.05) was observed. Further, consumed amounts increased in outdoor (β = 0.19, 95%CI = 0.04-0.34, z = 2.51) but decreased in public settings (β = -0.46, 95%CI = -0.66 - -0.25, z = -4.36), and consumption was more likely to occur on holidays (β = 3.91, 95%CI = 1.68-9.08, z = 3.17). All ps < 0.05. By capturing the immediate post-legalization period, this study contributes to important early insights to inform prevention, treatment, and regulation.

Indexed as

CannabisMarijuana UseAdultFemaleGermanyHumansMaleCannabis legalizationCannabis useEcological momentary assessmentGermany

Identifiers

PMID42701112
PMCPMC13546282

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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.