PMID: 20625671Jul 14, 2010Paper

Evaluation of the exhaled carbon monoxide levels in smokers with COPD

Jornal brasileiro de pneumologia : publicaça̋o oficial da Sociedade Brasileira de Pneumologia e Tisilogia
Gustavo ChatkinFlávia Valladão Thiesen

Abstract

To measure exhaled carbon monoxide (COex) levels in smokers with and without COPD. Smokers treated at outpatient clinics of São Lucas Hospital in the city of Porto Alegre, Brazil, between September of 2007 and March of 2009 were invited to participate in this study. The participants completed a questionnaire regarding demographic and epidemiologic characteristics and were submitted to spirometry, as well as to determination of COex and urinary cotinine levels. The participants were divided into two groups: those with COPD and those without COPD. The study involved 294 smokers, of whom 174 (59.18%) had been diagnosed with COPD. All of the participants presented with urinary cotinine levels > 50 ng/mL. Smokers with COPD presented significantly higher median values for age and pack-years than did those without COPD (p < 0.001 and p = 0.026, respectively). No other statistically significant differences were found. When adjusted for gender, age at smoking onset, number of cigarettes/day and urinary cotinine level, the mean values of COex were higher, but not statistically so, in the COPD group than in the non-COPD group (17.8 +/- 0.6 ppm and 16.6 +/- 0.7 ppm, respectively; p = 0.200). The differences remained nonsignificant when plo...Continue Reading

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Citations

Nov 17, 2011·International Journal of Occupational Medicine and Environmental Health·Pascale SalamehMirna Waked
Apr 20, 2016·Frontiers in Psychiatry·Robert PhilibertKai Wang
Mar 9, 2011·Journal of Breath Research·Réka Gajdócsy, Ildikó Horváth
Aug 29, 2019·American Journal of Medical Genetics. Part B, Neuropsychiatric Genetics : the Official Publication of the International Society of Psychiatric Genetics·Robert PhilibertJeffrey D Long
Sep 5, 2017·The Open Nursing Journal·Mônica Suêla de Azevedo MacenaAna Luisa Brandão de Carvalho Lira

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