title: [Evaluation of coefficient of variation of age in pleural effusion in António Pedro Hospital, Niterói city, state of Rio de Janeiro, Brazil].
abstract: Pleural effusion is a frequent syndrome in Brazil. Tuberculosis is the most prevalent (P) cause. The coefficient of variation (CV) is a useful single measure of variability. The objective of the present work was to evaluate the coefficient of variation in pleural effusion, having as variable the age. 215 patients had appeared after diagnostic physician and for image of syndrome of pleural effusions. Diagnostic thoracentesis, tests on pleural fluid and others invasive surgical procedures to the approach to a patient with pleural effusion. Tuberculosis (P=56.0%; CV=39,7%), adenocarcinoma (P=11.0%; CV=25.1%), transudates (P=12.0%; CV=19.6%), lymphomas (P=2.0%; CV=34.6%), systemic lupus erythematosus (P=2.0%; CV=38.7%), empyema pleural not tuberculosis (P=5.0%; CV=42.2%), pulmonary infarction (P=4.0 %; CV=30.1%) and parapneumonic (P=4.0 %; CV=38.9%) are the causes more prevalent. The analysis on the date showed that the coefficient of variation of age in pleural effusions was high and very high. The values of the coefficient of variation translate a high degree of dispersion of the age of the patients in each cause of pleural effusion.
authors.affiliation: Universidade Federal Fluminense, Cidade de Niterói, Estado do Rio de Janeiro.
authors.forename: Cyro Teixeira
authors.initials: CT
authors.lastname: da Silva Junior
authors.forename: Rodolfo Fred
authors.initials: RF
authors.lastname: Behrsin
authors.forename: Gilberto Perez
authors.initials: GP
authors.lastname: Cardoso
authors.forename: Nicolau Pedro
authors.initials: NP
authors.lastname: Monteiro
mesh_terms: D000328:Adult; D017677:Age Distribution; D001938:Brazil; D005260:Female; D006785:Hospitals, University; D006801:Humans; D008297:Male; D008875:Middle Aged; D010996:Pleural Effusion / Q000453:epidemiology*