Nam Dinh University of Nursing|VinUniversity|Da Nang University of Technology|Nam Dinh University of Nursing|Hue University
objective purpose study translate verify validity reliability vietnamese version chronic obstructive pulmonary diseasequestionair copdq measure knowledge level copd patients vietnammaterial methods adaptation psychometric characteristics test vietnamesecopdq performed 90 participants july 2021 february 2022 study included 30 copd patients pretesting adaptation translated version whereas 60 patients considered testretest reliability content validity questionnaire measured opinions five experts concurrent validity assessment pearsons correlation coefficient used test association copdq copd assessment test cat scale modified british medical research council mmrc dyspnea scale kuderrichardson 20 kr20 statistical test used measure internal consistency questionnaire testretest reliability measured using intraclass correlationresults vietnamese version copdq demonstrated good content validity items content validity index icvi score 13 items gt079 negative significant correlations mmrc scale r0859 pvalue0000 cat scale r0861 pvalue0000 demonstrated good concurrent validity additionally internal consistency kr20 preand posttest 0883 0866 respectively testretest reliability r0996 pvalue0000 identified good resultconclusion knowledge measurement properties vcopdq copd patients low health literacy skills satisfactory