Prevalence of active and passive smoking in a population of patients with asthma.
Smoking causes an intense inflammatory reaction in the airways and is associated with worse clinical outcomes in patients with asthma. The objective of this study was to determine the prevalence of active and passive smoking in a population of patients with asthma. The sample of asthma patients (n = 100) consisted of 47 nonsmokers, 33 former smokers, 17 passive smokers and 3 active smokers. Most had moderate or severe asthma. Mean exhaled CO was 9.34 ppb in smokers, 4.19 ppb in passive smokers, 3.98 ppb in nonsmokers and 3.98 ppb in former smokers. We conclude that the prevalence of exposure to tobacco smoke is high among asthma patients.
Dias-Júnior
Sérvulo Azevedo
SA
Hospital das Clínicas, Universidade de São Paulo, SP, Brasil. servuloazevedo@gmail.com
Pinto
Regina Carvalho
RC
Angelini
Luciene
L
Fernandes
Frederico Leon Arrabal
FL
Cukier
Alberto
A
Stelmach
Rafael
R
D000328:Adult; D001249:Asthma / Q000453:epidemiology* / Q000209:etiology; D001938:Brazil / Q000453:epidemiology; D002248:Carbon Monoxide / Q000378:metabolism; D045853:Exhalation; D005260:Female; D006801:Humans; D008297:Male; D015995:Prevalence; D012720:Severity of Illness Index; D012907:Smoking / Q000009:adverse effects / Q000453:epidemiology*; D014028:Tobacco Smoke Pollution / Q000009:adverse effects / Q000706:statistics & numerical data*
D014028:Tobacco Smoke Pollution; D002248:Carbon Monoxide