title: [Validation of the Portuguese version of the London Chest Activity of Daily Living Scale (LCADL) in chronic obstructive pulmonary disease patients].
abstract: BACKGROUND
  While there are several subjective English tools, such as the London Chest Activity of Daily Living scale (LCADL), aimed at assessing dyspnoea during activities of daily living (ADL) in patients with Chronic Obstructive Pulmonary Di- sease (COPD), none of these questionnaires has ever been translated into Portuguese. The aim of this study was to investigate the validity and reproducibility of the LCADL's Portuguese version in patients with COPD.
  
  
  METHODS
  31 patients with COPD (17 male; 69+/-7 years; FEV1 44+/-15 %predicted) completed the Portuguese version of the LCADL twice with a 1-week interval. The traditional Saint George Respiratory Questionnaire (SGRQ), already validated in Portuguese, was used as the criterion method.
  
  
  RESULTS
  There were no significant differences between test and retest of the LCADL. Intraclass Correlation Coefficient between test and retest concerning the different scale components was Self-care r=0.96; Domestic r=0.99; Physical r=0.92; Leisure r=0.95; Total Score r=0.98. There were significant correlations of the LCADL Total Score with the SGRQ's different components and total score (0.36<r<0.74; p<0.05 for all). The LCADL Total Score was also significantly correlated with the 6-minute walking distance test (r= -0.48; p=0.006).
  
  
  CONCLUSIONS
  The Portuguese version of the LCADL is valid and reproducible in patients with COPD, making this study a new and important tool for assessing the limitations of performing ADL in this population.
authors.affiliation: School of Physiotherapy, Universidade Estadual de Londrina, PR, Brazil. fabiopitta@uol.com.br
authors.forename: Fábio
authors.initials: F
authors.lastname: Pitta
authors.forename: Vanessa S
authors.initials: VS
authors.lastname: Probst
authors.forename: Demétria
authors.initials: D
authors.lastname: Kovelis
authors.forename: Nicoli O
authors.initials: NO
authors.lastname: Segretti
authors.forename: Aline
authors.initials: A
authors.lastname: Mt Leoni
authors.forename: Rachel
authors.initials: R
authors.lastname: Garrod
authors.forename: Antonio F
authors.initials: AF
authors.lastname: Brunetto
mesh_terms: D000203:Activities of Daily Living; D000368:Aged; D003430:Cross-Sectional Studies; D017079:Exercise Tolerance / Q000502:physiology; D005260:Female; D006801:Humans; D008297:Male; D029424:Pulmonary Disease, Chronic Obstructive / Q000503:physiopathology*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013147:Spirometry / Q000379:methods; D011795:Surveys and Questionnaires / Q000592:standards*; D014177:Translations