Background Several COPD phenotypes have been described; the COPD-asthma overlap is
one of the most recognized. The aim of this study was to evaluate the prevalence of three …

The aim of the present study was to evaluate the association between history of tuberculosis
and airflow obstruction. A population-based, multicentre study was carried out and included …

Background Both the prevalence and mortality attributable to chronic obstructive pulmonary
disease (COPD) seem to be increasing in low-income and middle-income countries, but few …

Little information exists regarding the epidemiology of the chronic bronchitis phenotype in
unselected chronic obstructive pulmonary disease (COPD) populations. We examined the …

Background:COPD is a major worldwide problem with a rising prevalence. Despite its
importance, there is a lack of information regarding underdiagnosis and misdiagnosis of COPD in …

Study Objectives: to estimate the prevalence of the most common sleep related symptoms (SRS)
in the metropolitan areas of Mexico City, Montevideo (Uruguay), Santiago (Chile), and …

There is evidence to suggest sex differences exists in chronic obstructive pulmonary disease
(COPD) clinical expression. We investigated sex differences in health status perception, …

Helicobacter pylori (H. pylori) has been found in the oral cavity and stomach, and its infection
is one of the most frequent worldwide. We reviewed the literature and conducted a Topic …

BACKGROUND: The body mass index (BMI) is a prognostic factor for chronic obstructive
pulmonary disease (COPD). Despite its importance, little information is available regarding BMI …

OBJECTIVE: In clinical practice, spirometry is an extremely useful test that requires strict quality
control, an appropriate strategy for interpretation, and reliable reference values. The aim …