%0 Journal Article
%T Validation of the Airways Questionnaire 20 - AQ20 in patients with chronic obstructive pulmonary disease (COPD) in Brazil
%A Camelier
%A Aquiles
%A Rosa
%A Fernanda
%A Jones
%A Paul
%A Jardim
%A Jos¨¦ Roberto
%J Jornal de Pneumologia
%D 2003
%I Scientific Electronic Library Online
%R 10.1590/S0102-35862003000100007
%X introduction: a great emphasis has been placed on health-related quality of life of copd patients and specific questionnaires have been developed in order to measure it. objective: this study describes the language and cultural adaptation of a new (and short) disease-specific health status questionnaire developed for chronic obstructive pulmonary diseases: the airways questionnaire 20 (aq20). methods: in order to validate this questionnaire in brazil, it was initially translated into portuguese. the cultural adaptation was taken into consideration and then a back translation to english was undertaken, in order to obtain a final portuguese version. correlations were made with fev1, spo2, bmi and another disease-specific health status questionnaire, the saint george respiratory questionnaire (sgrq), previously validated in brazil. the interclass correlation ratio was done to test the reproducibility of aq20. results: the interclass correlation ratio for the total score was a = 0.90 (intra-observer variability) and a = 0.93 (inter-observer variability) (p < 0.05 for both). the correlation with total sgrq score was 0.76, with p < 0.001. the average time to answer the aq20 was 4 min and 6 s. conclusion: the brazilian portuguese version of aq20 is reproducible, of fast application and with good a correlation with sgrq total score, which makes it a valid questionnaire to measure health status in obstructive patients in brazil.
%K obstructive lung diseases
%K questionnaire
%K quality of life
%K reproducibility of results.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0102-35862003000100007&lng=en&nrm=iso&tlng=en