Evidence map›Paper›PMID 33410122›Full record

ArticleCanadian journal of public health = Revue canadienne de sante publique2021

Examining how changes in provincial policy on vape marketing impacted the distribution of vaping advertisements near secondary schools in London, Ontario.

Gina Martin, Drew D Bowman, Megan Graat, Andrew F Clark, Alexander J Wray, Zoe Askwith, Jamie A Seabrook, Jason A Gilliland

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Canadian journal of public health = Revue canadienne de sante publique, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Investigating changes in vape use among Canadian youth from 2014 to 2022.Canadian journal of public health = Revue canadienne de sante publique · 2026
    Article
  3. The availability and distribution of vaping retailers across Ontario neighbourhoods, 2016-2019.Canadian journal of public health = Revue canadienne de sante publique · 2023
    Article
  4. 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

8 authors.

Gina MartinHuman Environments Analysis Laboratory, Western University, Room 2432, SSC, London, ON, N6A 5C2, Canada.
Drew D BowmanHuman Environments Analysis Laboratory, Western University, Room 2432, SSC, London, ON, N6A 5C2, Canada.
Megan GraatHuman Environments Analysis Laboratory, Western University, Room 2432, SSC, London, ON, N6A 5C2, Canada.
Andrew F ClarkHuman Environments Analysis Laboratory, Western University, Room 2432, SSC, London, ON, N6A 5C2, Canada.
Alexander J WrayHuman Environments Analysis Laboratory, Western University, Room 2432, SSC, London, ON, N6A 5C2, Canada.
Zoe AskwithHuman Environments Analysis Laboratory, Western University, Room 2432, SSC, London, ON, N6A 5C2, Canada.
Jamie A SeabrookHuman Environments Analysis Laboratory, Western University, Room 2432, SSC, London, ON, N6A 5C2, Canada.
Jason A GillilandHuman Environments Analysis Laboratory, Western University, Room 2432, SSC, London, ON, N6A 5C2, Canada. jgillila@uwo.ca.ORCID 0000-0002-2909-2178

Funding

CIHR 441974
6 · The paper itself

Abstract

objectivesOn January 1, 2020, the Government of Ontario passed a regulation banning vaping advertisements by retailers, apart from specialty shops. A motivation for this ban was to limit youth exposure to vaping advertisements. The primary goal of this research was to evaluate the impact of this ban on the number and density of vaping advertisements surrounding secondary schools. Additionally, we examined whether the number of vaping advertisements varied by school socio-demographic characteristics.

methodsThis study used a pre-post design. Audits were conducted December 2019 (pre-ban) and again January to February 2020 (post-ban), to identify vaping advertisements within 800 m surrounding secondary schools (n = 18) in London, Ontario.

resultsPrior to the ban, there were 266 vaping advertisements within 800 m of secondary schools. After the ban, this was reduced to 58, a 78.2% reduction. The mean number of vaping advertisements surrounding schools significantly decreased from 18.1 before the ban to 3.6 after the ban (p < 0.001). A significant positive correlation was found, prior to the ban, between the number of vaping advertisements surrounding schools and school-level residential instability (r = 0.42, p = 0.02). After the ban, no significant correlations were found between the number of vaping advertisements and school socio-demographic characteristics.

conclusionThe provincial ban of vaping advertisements in select retail settings significantly reduced the number of vaping advertisements in the areas surrounding secondary schools in London, Ontario. The ban also reduced socio-demographic inequities in youths' potential exposure to marketing of vaping products. Continued monitoring of the geographic accessibility and promotion of vaping products is warranted.

Indexed as

MarketingPolicyVapingAdolescentAdvertisingHumansOntarioSchoolsE-cigarettesMarketingPolicySchoolsVapingYouth

Identifiers

PMID33410122
PMCPMC8076358

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.