Evidence map›Paper›PMID 20950536›Full record

ArticlePreventing chronic disease2010

The influence of school policies on smoking prevalence among students in grades 5-9, Canada, 2004-2005.

Chris Y Lovato, Allison W Pullman, Peter Halpin, Cornelia Zeisser, Candace I J Nykiforuk, Frankie Best, Alan Diener, Steve Manske

Abstract read
In one paragraph

Article in Preventing chronic disease, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing 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

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

  1. School policies for preventing smoking among young people.The Cochrane database of systematic reviews · 2014
    Pooled it
  2. Guideline
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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

8 authors.

Chris Y LovatoSchool of Population and Public Health, University of British Columbia, 5804 Fairview Ave, Vancouver, BC V6T 1Z3. chris.lovato@ubc.ca
Allison W Pullman
Peter Halpin
Cornelia Zeisser
Candace I J Nykiforuk
Frankie Best
Alan Diener
Steve Manske

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionSchool characteristics may account for some of the variation in smoking prevalence among schools. The purpose of this study was to investigate the relationships between characteristics of school tobacco policies and school smoking prevalence. We also examined the relationship between these characteristics and individual smoking status.

methodsTobacco policy data were collected from schools in 10 Canadian provinces during the 2004-2005 school year. Written tobacco policies were collected from each school to examine policy intent, and school administrators were surveyed to assess policy enforcement. Students in grades 5 through 9 completed the Youth Smoking Survey to assess smoking behaviors and attitudes. We used negative binomial regression and multilevel logistic regression to predict the influence of school policies on smoking behavior at the school and student levels.

resultsSchool policies that explicitly stated purpose and goals predicted lower prevalence of smoking at the school and individual levels. Policies that prohibited smoking on school grounds at all times predicted lower smoking prevalence at the school level but not at the individual level.

conclusionFor maximum effectiveness, school smoking policies should clearly state a purpose and goals and should emphasize smoking prohibition. These policies can help reduce smoking prevalence among youths and are part of a comprehensive school approach to tobacco control.

Indexed as

Organizational PolicySmoking PreventionAdolescentCanadaChildData CollectionFemaleHumansMaleProgram DevelopmentProgram EvaluationSchoolsSmokingSurveys and Questionnaires

Identifiers

PMID20950536
PMCPMC2995590

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.