Evidence map›Paper›PMID 34460847›Full record

SynthesisPloS one2021

Evidence for an increase in cannabis use in Iran - A systematic review and trend analysis.

Yasna Rostam-Abadi, Jaleh Gholami, Masoumeh Amin-Esmaeili, Shahab Baheshmat, Marziyeh Hamzehzadeh, Hossein Rafiemanesh, Morteza Nasserbakht, Leila Ghalichi, Anousheh Safarcherati, Farhad Taremian and 2 more

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 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

11 citing papers in PubMed, 1 synthesis or guideline 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

12 authors.

Yasna Rostam-AbadiIranian National Center for Addiction Studies (INCAS), Tehran University of Medical Sciences, Tehran, Iran.
Jaleh GholamiIranian National Center for Addiction Studies (INCAS), Tehran University of Medical Sciences, Tehran, Iran.
Masoumeh Amin-EsmaeiliIranian National Center for Addiction Studies (INCAS), Tehran University of Medical Sciences, Tehran, Iran.
Shahab BaheshmatIranian National Center for Addiction Studies (INCAS), Tehran University of Medical Sciences, Tehran, Iran.
Marziyeh HamzehzadehIranian National Center for Addiction Studies (INCAS), Tehran University of Medical Sciences, Tehran, Iran.
Hossein RafiemaneshStudent Research Committee, Department of Epidemiology, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Morteza NasserbakhtMental Health Research Center, Tehran Psychiatry Institute, Iran University of Medical Sciences, Tehran, Iran.
Leila GhalichiMental Health Research Center, Psychosocial Health Research Institute, Iran University of Medical Science, Tehran, Iran.
Anousheh SafarcheratiIranian National Center for Addiction Studies (INCAS), Tehran University of Medical Sciences, Tehran, Iran.
Farhad TaremianSubstance Abuse and Dependence research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.
Ramin MojtabaiMental Health Department, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America.
Afarin Rahimi-MovagharIranian National Center for Addiction Studies (INCAS), Tehran University of Medical Sciences, Tehran, Iran.ORCID 0000-0002-5761-1668

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

aimsCannabis is the most widely used illicit substance globally. In this systematic review, we examined the prevalence and trends of cannabis use and cannabis use disorder in Iran.

methodsWe searched International and Iranian databases up to March 2021. Pooled prevalence of use among sex subgroups of the general population, university and high school students, combined youth groups, and high-risk groups was estimated through random-effects model. Trends of various use indicators and national seizures were examined.

resultsNinety studies were included. The prevalence estimates of last 12-month cannabis use were 1.3% (95%CI: 0.1-3.6) and 0.2% (95%CI: 0.1-0.3) among the male and female Iranian general population, respectively. The prevalence of cannabis use disorder among general population in national studies rose from 0% in 2001 to 0.5% in 2011. In the 2016-2020 period, the pooled prevalence estimates of last 12-month cannabis use were 4.9% (95% CI: 3.4-6.7) and 0.3% (95% CI: 0.0-1.3) among males and females of "combined youth groups", respectively. The linear trend of last 12-month cannabis use among males of "combined youth groups" and among female university students increased significantly from 2000 to 2020.

conclusionsPrevalence of cannabis use in Iran is low compared to many countries. However, there is strong evidence of an increase in cannabis use among the youth and some evidence for an increase in cannabis use disorder.

Indexed as

AdolescentAdultAgedAged, 80 and overCannabisFemaleGeographyHumansIranMaleMiddle AgedPrevalencePrisonersRisk FactorsSchoolsStudents

Identifiers

PMID34460847
PMCPMC8404985

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.