title: [Correlation between Borg's scale and spirometer in asthmatic patients].
abstract: BACKGROUND
  Spirometry is the ideal evidence to diagnose and evaluate the degree of bronchial obstruction which is present in asthma; however, it is not easy for physicians to have access to it during the first contact due to its high cost. The Borg's scale is an analogous visual scale which has an economical and simple use; it evaluates in a subjective way the respiratory difficulty in a patient in a scale from 0 to 10. It is necessary to have the right tools to know the degree of pulmonary obstruction that asthmatic patients have and to be able to give them the right medical treatment. The use of the Borg's scale to evaluate the severity of the asthmatic patients causes controversy.
  
  
  OBJECTIVE
  To determine the correlation between the spirometry and the Borg's scale in adult asthmatic patients.
  
  
  METHODS
  One hundred and one cases of male and female asthmatic patients were studied (GINA2002) from the consultation of specialties in Allergy and Clinic Immunology. A spirometry was done to all patients (Multispiro 2000) and the Borg's scale method was applied to them. The project was approved by the local research committee. The SPSS program version 12.0 was used and the Pearson's correlation test was applied.
  
  
  RESULTS
  The correlation between the spirometry and the Borg's scale was r = 0.345, with p < 0.05.
  
  
  CONCLUSIONS
  There is a scarce correlation between the spirometry and the Borg's scale. The result obtained in this study does not support the use of the Borg's scale to appreciate the bronchial obstruction in adult asthmatic patients.
authors.affiliation: Departamento de Alergia e Inmunología Clínica, Hospital de Especialidades, Centro Medico Nacional Siglo XXI., México, DF.
authors.forename: Nora Hilda
authors.initials: NH
authors.lastname: Segura Méndez
authors.forename: Rodrigo
authors.initials: R
authors.lastname: Cortés Hernández
authors.forename: Diana
authors.initials: D
authors.lastname: Menez Díaz
authors.forename: Fabiola Dinorah
authors.initials: FD
authors.lastname: Espinosa Leal
authors.forename: Ernesto
authors.initials: E
authors.lastname: Sosa Erosa
authors.forename: Bernardo Augusto
authors.initials: BA
authors.lastname: Torres Salazar
mesh_terms: D000293:Adolescent; D000328:Adult; D001249:Asthma / Q000145:classification* / Q000503:physiopathology; D003430:Cross-Sectional Studies; D004417:Dyspnea / Q000145:classification / Q000209:etiology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012720:Severity of Illness Index; D013147:Spirometry