Evidence map›Paper›PMID 41135919›Full record

ArticleAmerican journal of preventive medicine2026

The Intensity of Adolescent Substance Use Before and After the COVID-19 Pandemic.

Richard A Miech

Abstract read
In one paragraph

Article in American journal of preventive medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Article
  2. Article
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

1 author.

Richard A MiechInstitute for Social Research, University of Michigan, Ann Arbor, Michigan. Electronic address: rmiech@gmail.com.

Funding

Monitoring the Future: Drug Use & Lifestyles of American Youth (Supp1: Nicotine Pouch and E-cigarette Use Among US Adolescents: National Estimates of Brand Use and Flavor Preferences)R01DA001411 · NIDA · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI Richard A Miech · 1985 to 2026
$144.9M
NIDA NIH HHS R01 DA001411
6 · The paper itself

Abstract

introductionAdolescent cannabis and alcohol use declined substantially after the COVID-19 pandemic onset in 2020. This study tests whether substance use hardened, defined as an increased proportion of heavy users resulting from overall prevalence declines driven mainly by reductions in light and moderate use.

methodsData come from Monitoring the Future, which annually surveys nationally representative, cross-sectional samples of U.S. adolescents in 8th, 10th, and 12th grades. The analysis includes 252,810 respondents surveyed between 2017 and 2024, with response rates of 86% in 8th grade, 85% in 10th grade, and 76% in 12th grade. The main outcome is lifetime intensity of cannabis and alcohol use, measured as light (1-5), moderate (6-19), and heavier (≥20) occasions of lifetime use.

resultsAfter the pandemic onset, adolescent alcohol use softened notably, whereas cannabis use softened slightly. For alcohol, light use increased significantly across all 3 grades by 3-7 percentage points, moderate use decreased in all 3 grades by 2-4 points, and heavy use decreased by 4 points in 12th grade and 3 points in 10th grade. For cannabis, changes were limited to 10th grade, where light use increased by 3 points, and moderate use decreased by 2 points.

conclusionsThese results point to a continued need for prevention policies and programs to achieve further reductions in adolescent cannabis and alcohol use. Current patterns of use are not yet at a hardened stage dominated by heavy users who struggle to quit, where further reductions in prevalence would be achieved primarily through cessation programs.

Indexed as

Adolescent BehaviorAlcohol DrinkingCOVID-19Substance-Related DisordersUnderage DrinkingAdolescentCross-Sectional StudiesFemaleHumansMalePandemicsPrevalenceSARS-CoV-2Surveys and QuestionnairesUnited States

Identifiers

PMID41135919
PMCPMC12616519

What OpenQuestion holds

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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.