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Maria Conceição de Castro Antonelli Monteiro de Queiroz,1 Maria Auxiliadora Carmo Moreira,1 Jose R Jardim,2 Maria Alves Barbosa,3 Ruth Minamisava,3 Heicilainy Del Carlos Gondim,4 Flávia Castro Velasco,4 Maria Vitoria Carmo Penhavel5 1Department of Respiratory Medicine, School of Medicine, Federal University of Goiás, Goiânia, Brazil; 2Respiratory Division at Escola Paulista de Medicina, Federal University of São Paulo, Brazil; 3School of Nursing, Federal University of Goiás, 4Pulmonology Department, Goiânia General Hospital, Goiânia, Brazil; 5School of Medicine, University of Brasilia, Brasilia, Brazil Background: Chronic obstructive pulmonary disease (COPD) is often underdiagnosed, which might be attributable to a lack of knowledge about the disease among the general population. The objective of this study was to evaluate COPD-related knowledge among primary care users in an urban area in Brazil. Methods: This study was carried out at primary care clinics (PCCs), including 12 general PCCs and 26 family health PCCs, in the city of Goiânia, Brazil. Between May 2013 and February 2014, we interviewed 674 PCC users, applying a questionnaire designed to assess COPD-related knowledge. Satisfactory knowledge of COPD was defined as knowing at least two of its symptoms and that smoking is a risk factor for the disease. Results: Of the 674 users interviewed, only 9.2% recognized the term “COPD”, 75.1% recognized the term “emphysema”, and 15.7% did not recognize either term. We found that recognizing either term was associated with a higher level of education (P |