title: [Cystic fibrosis in adults: inter- and intraobserver agreement for the Brasfield and Chrispin-Norman chest radiography scoring systems and correlation with clinical data and spirometry].
abstract: OBJECTIVE
  Most chest radiography scoring systems for patients with cystic fibrosis have been developed for children but are also used for adults. Our aim was to evaluate the intra- and interobserver variability of 2 radiographic scoring systems in adults with cystic fibrosis and to assess the correlation of these systems with clinical and spirometric parameters.
  
  
  METHODS
  The chest x-rays of 24 adult patients with cystic fibrosis were compared using 2 scoring systems (Brasfield and Chrispin-Norman). The x-rays were scored by 2 radiologists and reevaluated 4 months later by 1 of the 2 observers. Intra- and interobserver agreement was assessed using the intraclass and Pearson's correlation coefficients. The radiographic scores were compared to lung function tests and other clinical data.
  
  
  RESULTS
  Both intra- and interobserver agreement were high (r > or = 0.9 and the intraclass correlation coefficient > or = 0.85 with both systems for both samples). Both scoring systems correlated with spirometry results: forced expiratory volume in the first second (FEV1) (r = 0.64 and r = 0.55), FEV1% (r = 0.75 and r = 0.72), and the percentage of forced vital capacity in relation to the predicted value (r = 0.63 and r = 0.056). We found no association between scoring system and sex, age, or body mass index.
  
  
  CONCLUSIONS
  Assessment of chest radiographs of adult patients with cystic fibrosis by the Brasfield and Chrispin-Norman scoring systems shows good intra- and interobserver agreement. Both systems correlate well with lung function variables, especially FEV1.
authors.affiliation: Servicio de Radiodiagnóstico, Hospital de la Princesa, Universidad Autónoma, Madrid, Spain.
authors.forename: V
authors.initials: V
authors.lastname: Gutiérrez
authors.forename: M J
authors.initials: MJ
authors.lastname: Olivera
authors.forename: R M
authors.initials: RM
authors.lastname: Girón
authors.forename: F
authors.initials: F
authors.lastname: Rodríguez-Salvanés
authors.forename: P
authors.initials: P
authors.lastname: Caballero
mesh_terms: D000328:Adult; D003550:Cystic Fibrosis / Q000000981:diagnostic imaging* / Q000503:physiopathology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015588:Observer Variation; D011859:Radiography; D013147:Spirometry / Q000706:statistics & numerical data