title: Validation of a questionnaire in Spanish on asthma knowledge in teachers.
abstract: OBJECTIVE
  To evaluate the reliability and validity of the Spanish version of the NewCastle Asthma Knowledge Questionnaire (NAKQ) for determining asthma knowledge in teachers.
  
  
  METHODS
  
  
  
  METHODS
  A cross-sectional observational study in educational centers of A Coruña providing preschool, primary school and/or compulsory secondary education. Centers were selected by random sampling, stratified by ownership and educational level (24centers, 864teachers). A total of 537 (62.1%) teachers responded (precision, ±4%, confidence, 95%).
  
  
  METHODS
  Age, sex, academic training, teaching experience, personal/family history of asthma, NAKQ.
  
  
  METHODS
  Evaluation of internal consistency (Cronbach's alpha). Concurrent validity was determined by comparing scores of asthmatic teachers or with asthmatic relatives with teachers with no contact with asthma. Test-retest reliability was evaluated in two randomly selected centers by the kappa index, Bland-Altman method and intraclass correlation coefficient.
  
  
  RESULTS
  Mean score on the NAKQ was 15.7±5.3 (median 17), correctly answering 50.6% of items. Cronbach's alpha coefficient was 0.824 (95%CI: 0.802-0.845). NAKQ score was higher in asthmatic teachers or with close asthmatic relatives (17.7±3.3) than in teachers with distant asthmatic relatives (16.1±5.4) and teachers without close contact with asthma (15.1±5.6; P<0.001). In the test-retest analysis (kappa 0.33-1), there were no differences in NAKQ score between the first and second completion (mean difference, 0.3±2.3; intraclass correlation coefficient, 0.863).
  
  
  CONCLUSIONS
  Scores obtained with the Spanish version of the NAKQ in teachers of Spanish school centers are reliable and valid to measure their degree of asthma knowledge.
authors.affiliation: Fundación María José Jove, A Coruña, España; Centro de Salud El Castrillón, A Coruña, España. Electronic address: angel.lopez-silvarrey.varela@sergas.es.
authors.forename: Angel
authors.initials: A
authors.lastname: López-Silvarrey Varela
authors.affiliation: Unidad de Epidemiología y Bioestadística, Complejo Hospitalario Universitario de A Coruña, A Coruña, España.
authors.forename: Sonia
authors.initials: S
authors.lastname: Pértega Díaz
authors.affiliation: Unidad de Neumología Pediátrica, Hospital Universitario Clínico San Carlos, Madrid, España.
authors.forename: Santiago
authors.initials: S
authors.lastname: Rueda Esteban
authors.affiliation: Sección de Neumología Pediátrica, Hospital Universitario Donostia, San Sebastián, España.
authors.forename: Javier
authors.initials: J
authors.lastname: Korta Murúa
authors.affiliation: Fundación María José Jove, A Coruña, España.
authors.forename: Bárbara
authors.initials: B
authors.lastname: Iglesias López
authors.affiliation: Departamento de Pediatría, Hospital Virgen de la Salud, Toledo, España.
authors.forename: Antonio
authors.initials: A
authors.lastname: Martínez-Gimeno
mesh_terms: D000328:Adult; D001249:Asthma; D003430:Cross-Sectional Studies; D005178:Faculty; D005260:Female; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D007802:Language; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires
keywords: Asma; Asthma; Cuestionario; Profesorado; Questionnaire; Teachers