Teenage smoking behaviour following a high-school smoking ban in Chile: interrupted time-series analysis.
Bull World Health Organ
; 93(7): 468-75, 2015 Jul 01.
Article
em En
| MEDLINE
| ID: mdl-26170504
ABSTRACT
OBJECTIVE:
To evaluate the effect of a smoking ban in high schools on smoking behaviour among Chilean students.METHODS:
We conducted an interrupted time-series analysis, using repeated cross-sectional data from Chile's school population survey (2000-2011) for high-school students aged 12-18 years and a control group of persons aged 19-24 years. Poisson regression models were used to assess trends in smoking behaviour before and after the policy changes. The outcome measures were self-reported smoking prevalence (any smoking in the past month) and high frequency of smoking (smoking 15 days or more per month).FINDINGS:
From 2005 to 2011, the prevalence of smoking declined among high-school students by 6.8% per year compared with 3.6% decline per year in the control group. The decline in the target group was 2.9% (95% confidence interval, CI 0.18 to 5.00) greater. We estimated that 5-6 years after enforcing the law, smoking prevalence among high-school students was 13.7% lower as a result of the ban. The impact of the smoking ban was primarily driven by declines in smoking prevalence among students in grades 8 to 10. The smoking ban did not significantly alter the frequency of smoking.CONCLUSION:
The 2005 school smoking ban reduced smoking prevalence among younger high-school students in Chile. Further interventions targeting older individuals and frequent smokers may be needed.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Instituições Acadêmicas
/
Fumar
Tipo de estudo:
Observational_studies
/
Prevalence_studies
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Prognostic_studies
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Risk_factors_studies
Limite:
Adolescent
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Adult
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Child
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Female
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Humans
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Male
País como assunto:
America do sul
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Chile
Idioma:
En
Ano de publicação:
2015
Tipo de documento:
Article