Evidence map›Paper›PMID 33526131›Full record

ArticleJournal of cannabis research2020

Changes in cannabis use according to socioeconomic status among Finnish adolescents from 2000 to 2015.

Noora Knaappila, Mauri Marttunen, Sari Fröjd, Nina Lindberg, Riittakerttu Kaltiala

Abstract read
In one paragraph

Article in Journal of cannabis research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 2 pooled it
–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

5 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pharmacotherapies for cannabis use disorder.The Cochrane database of systematic reviews · 2025
    Pooled it
  2. Pooled it
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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

5 authors.

Noora KnaappilaFaculty of Medicine and Life Sciences, University of Tampere, 33014, Tampere, Finland. noora.knaappila@tuni.fi.
Mauri MarttunenAdolescent Psychiatry, University of Helsinki and Helsinki University Hospital, PO Box 22, FI-00014, Helsinki, Finland.
Sari FröjdFaculty of Medicine and Life Sciences, University of Tampere, 33014, Tampere, Finland.
Nina LindbergDepartment of Adolescent Psychiatry, Helsinki University Central Hospital, PO Box 590, 00029 HUS, Helsinki, Finland.
Riittakerttu KaltialaFaculty of Medicine and Life Sciences, University of Tampere, 33014, Tampere, Finland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDespite reduced sanctions and more permissive attitudes toward cannabis use in the USA and Europe, the prevalences of adolescent cannabis use have remained rather stable in the twenty-first century. However, whether trends in adolescent cannabis use differ between socioeconomic groups is not known. The aim of this study was to examine trends in cannabis use according to socioeconomic status among Finnish adolescents from 2000 to 2015.

methodsA population-based school survey was conducted biennially among 14-16-year-old Finns between 2000 and 2015 (n = 761,278). Distributions for any and frequent cannabis use over time according to socioeconomic adversities were calculated using crosstabs and chi-square test. Associations between any and frequent cannabis use, time, and socioeconomic adversities were studied using binomial logistic regression results shown by odds ratios with 95% confidence intervals.

resultsAt the overall level, the prevalences of lifetime and frequent cannabis use varied only slightly between 2000 and 2015. Cannabis use was associated with socioeconomic adversities (parental unemployment in the past year, low parental education, and not living with both parents). The differences in any and frequent cannabis use between socioeconomic groups increased significantly over the study period.

conclusionsAlthough the overall changes in the prevalence of adolescent cannabis use were modest, cannabis use increased markedly among adolescents with the most socioeconomic adversities. Socioeconomic adversities should be considered in the prevention of adolescent cannabis use.

Indexed as

AdolescentCannabisEpidemiologyFinlandParental factorsSocioeconomic factorsSocioeconomic status

Identifiers

PMID33526131
PMCPMC7819333

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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.