title: [Validation of the SF-36 questionnaire in adults with asthma and allergic rhinitis in Mexican population].
abstract: BACKGROUND
  Multiple questionnaires demonstrated the effect of the disease on the Quality of Life (QL), especially on allergies. Asthma and allergic rhinitis contributes to the reduction of QL. One of the accepted instruments for the evaluation of QL in chronic diseases is the questionnaire SF-36 (SF-36). Our objective was to validate the SF-36 in Mexican asthmatic with allergic rhinitis adult patients.
  
  
  METHODS
  Fifty asthmatic patients with allergic rhinitis participated. They were placed according to the severity of their asthma (GINA 2004) and of allergic rhinitis (ARIA). The SF-36 was applied. The results were analyzed by descriptive statistics and validation by internal consistency through the Cronbach's test.
  
  
  RESULTS
  It was observed that greater deterioration of QL in asthmatic patients with allergic rhinitis is directly related with the severity of their disease. Greater deterioration was observed on physical nature and of the perception of health. The aspect less affected was the social function and mental health. The Cronbach's test showed a coefficient of global reliability of 0.9314.
  
  
  CONCLUSIONS
  The results obtained for the validation of SF-36, through the Cronbach's test in the population studied allows their use for later studies.
authors.affiliation: Unidad de Medicina Familiar 28, Instituto Mexicano del Seguro Social, Distrito Federal, México.
authors.forename: Luis Enrique
authors.initials: LE
authors.lastname: Martínez-Hernández
authors.forename: Nora Hilda
authors.initials: NH
authors.lastname: Segura-Méndez
authors.forename: Abdiel
authors.initials: A
authors.lastname: Antonio-Ocampo
authors.forename: Augusto
authors.initials: A
authors.lastname: Torres-Salazar
authors.forename: Erika
authors.initials: E
authors.lastname: Murillo-Gómez
mesh_terms: D000328:Adult; D001249:Asthma / Q000150:complications / Q000175:diagnosis*; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008297:Male; D008800:Mexico; D011788:Quality of Life; D012221:Rhinitis, Allergic, Perennial / Q000150:complications / Q000175:diagnosis*; D011795:Surveys and Questionnaires