Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2019 Sep-Oct;95(5):538-544.
doi: 10.1016/j.jped.2018.05.010. Epub 2018 Jun 28.

ERICA: smoking is associated with more severe asthma in Brazilian adolescents

Erica Azevedo de Oliveira Costa Jordão  1 , Fabio Chigres Kuschnir  2 , Valeska Carvalho Figueiredo  3 , Mara Morelo Rocha Félix  2 , Thiago Luiz Nogueira da Silva  4 , Maria Cristina Caetano Kuschnir  2 , Katia Vergetti Bloch  4 , Moyses Szklo  4
Affiliations
Free article

ERICA: smoking is associated with more severe asthma in Brazilian adolescents

Erica Azevedo de Oliveira Costa Jordão et al. J Pediatr (Rio J). 2019 Sep-Oct.
Free article

Abstract

Objective: To investigate the association between smoking and asthma, and possible associated factors in Brazilian adolescents.

Methods: A cross-sectional, national, school-based study with adolescents aged 12-17 years, participants in the Study of Cardiovascular Risks in Adolescents (Estudo de Riscos Cardiovasculares em Adolescentes - ERICA). A total of 66,394 participants answered a self-administered questionnaire with questions about asthma, smoking, lifestyle and sociodemographic variables. Bivariate analysis between Current Asthma (CA) and Severe Asthma (SA) and the other study variables were performed using Chi-squared. Then, the crude and adjusted Prevalence Ratios (PR), and respective 95% Confidence Intervals (95% CI) of current asthma/severe asthma and smoking variables, corrected for sociodemographic and lifestyle variables, were estimated using generalized linear models with Poisson regression, logit link, and robust variance.

Results: The prevalence of current asthma and severe asthma were significantly higher in adolescents who were exposed to: experimentation (current asthma: PR=1.78, 95% CI: 1.51-2.09; severe asthma: PR=2.01; 95% CI: 1.35-2.98); current smoking (current asthma: PR=2.08, 95% CI: 1.65-2.64; severe asthma: PR=2.29; 95% CI: 1.38-3.82); regular smoking (current asthma: PR=2.25, 95% CI: 1.64-3.07; severe asthma: PR: 2.41; 95% CI: 1.23-4.73); and passive smoking (current asthma: PR=1.47, 95% CI: 1.27-1.67; severe asthma: PR=1.66; 95% CI: 1.19-2.32); these associations remained significant after adjustment.

Conclusions: Asthma and smoking were significantly associated in Brazilian adolescents, regardless of the sociodemographic and lifestyle factors, notably in those with more severe disease.

Keywords: Adolescent; Adolescente; Asma; Asthma; Epidemiological studies; Estudo epidemiológico; Smoking; Tabagismo.

PubMed Disclaimer

Comment in