ArticleJornal brasileiro de pneumologia : publicacao oficial da Sociedade Brasileira de Pneumologia e Tisilogia
Self-reported smoking status and urinary cotinine levels in patients with asthma.
Article in Jornal brasileiro de pneumologia : publicacao oficial da Sociedade Brasileira de Pneumologia e Tisilogia. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 10 citations in OpenAlex.
- Depression, suicidal motivation and suicidal ideation among individuals with asthma: a cross-sectional study.Journal of thoracic disease · 2021Article
- The Influence of Smoking Status on Exhaled Breath Profiles in Asthma and COPD Patients.Molecules (Basel, Switzerland) · 2021Article
- Smoking status and second-hand smoke biomarkers in COPD, asthma and healthy controls.ERJ open research · 2020Review
- Exposure to secondhand smoke among patients with asthma: a cross-sectional study.Einstein (Sao Paulo, Brazil) · 2020Article
- Clinical features and associated factors with severe asthma in Salvador, Brazil.Jornal brasileiro de pneumologia : publicacao oficial da Sociedade Brasileira de Pneumologia e TisilogiaArticle
- Cigarette Smoke Particle-Induced Lung Injury and Iron Homeostasis.International journal of chronic obstructive pulmonary diseaseReview
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Authors and funding
15 authors at 5 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo determine the frequency of active smoking among patients with asthma and individuals without asthma by self-report and urinary cotinine measurement.
methodsThis was a cross-sectional study conducted in the city of Salvador, Brazil, and involving 1,341 individuals: 498 patients with severe asthma, 417 patients with mild-to-moderate asthma, and 426 individuals without asthma. Smoking status was determined by self-report (with the use of standardized questionnaires) and urinary cotinine measurement. The study variables were compared with the chi-square test and the Kruskal-Wallis test.
resultsOf the sample as a whole, 55 (4.1%) reported being current smokers. Of those, 5 had severe asthma, 17 had mild-to-moderate asthma, and 33 had no asthma diagnosis. Of the 55 smokers, 32 (58.2%) were daily smokers and 23 (41.8%) were occasional smokers. Urinary cotinine levels were found to be high in self-reported nonsmokers and former smokers, especially among severe asthma patients, a finding that suggests patient nondisclosure of smoking status. Among smokers, a longer smoking history was found in patients with severe asthma when compared with those with mild-to-moderate asthma. In addition, the proportion of former smokers was higher among patients with severe asthma than among those with mild-to-moderate asthma.
conclusionsFormer smoking is associated with severe asthma. Current smoking is observed in patients with severe asthma, and patient nondisclosure of smoking status occurs in some cases. Patients with severe asthma should be thoroughly screened for smoking, and findings should be complemented by objective testing.
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