ERICA: tabagismo está associado a asma mais grave em adolescentes brasileiros

Translated title of the contribution: ERICA: smoking is associated with more severe asthma in Brazilian adolescents

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

Research output: Contribution to journalArticlepeer-review


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.

Translated title of the contributionERICA: smoking is associated with more severe asthma in Brazilian adolescents
Original languagePortuguese
Pages (from-to)538-544
Number of pages7
JournalJornal de Pediatria
Issue number5
StatePublished - Sep 1 2019
Externally publishedYes


  • Adolescent
  • Asthma
  • Epidemiological studies
  • Smoking

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health


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