Publications by authors named "Edna Thais Jeremias"
Objective: To measure exhaled carbon monoxide (COex) levels in smokers with and without COPD.
Methods: 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.