Evidence map›Paper›PMID 19052959›Full record

ArticleScandinavian journal of primary health care2009

When do adolescents become smokers? Annual seven-year population-based follow-up of tobacco habits among 2000 Swedish pupils--an open cohort study.

Ingrid Edvardsson, Lena Lendahls, Anders Håkansson

Open access · bronzeAbstract read
In one paragraph

Article in Scandinavian journal of primary health care, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.5field-weighted citation impact, top 32% of its field
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

6 citing papers in PubMed, 18 citations in OpenAlex.

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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

3 authors at 1 institution in 2 countries.

Ingrid EdvardssonDepartment of Clinical Sciences, Malmö-General Practice/Family Medicine Lund University, Malmö University Hospital, Malmö, Sweden. ingrid.edvardsson@ltkronoberg.se
Lena Lendahls
Anders Håkansson
Centre for Family Medicine · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo follow the development of a class of pupils' tobacco habits for seven years, and to study differences in tobacco use between girls and boys.

settingKronoberg County in southern Sweden. SUBJECTS: All the approximately 2000 pupils were followed from approximately age 12 to approximately age 18.

designYearly cross-sectional surveys from 1994 to 2000. Each year, the pupils filled in an established tobacco questionnaire. They did it anonymously in the classroom.

main outcome measuresPercentage of smokers, number of cigarettes smoked per day, and percentage of pupils using "snus", the Swedish variety of oral moist snuff.

resultsFrom grade 6 of compulsory school to grade 12 of upper secondary school, the proportion of daily smokers rose, from 0.2% to 22% for girls and from 0.5% to 14% for boys. Among both genders, the increase occurred mainly between grades 7 and 10, and from grade 10 onwards the daily smokers were the largest group of smokers. Starting from grade 9, boys had higher total tobacco consumption than girls, as a result of their increased use of "snus", and at the end of the study 39% of the boys used tobacco compared with 34% of the girls.

conclusionStudying young people's tobacco habits over time gives an understanding of when preventive measures should be implemented. In order for these to influence attitudes, they should be put in place well before tobacco is introduced.

Indexed as

Adolescent BehaviorSmokingAdolescentAttitude to HealthCohort StudiesCross-Sectional StudiesFemaleFollow-Up StudiesHumansMaleRisk FactorsSex FactorsSurveys and QuestionnairesSwedenTobacco, Smokeless

Identifiers

PMID19052959
PMCPMC3410476
OpenAlexW2076363597

What OpenQuestion holds

Textmetadata
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.