Cross-cultural adaptation of the knowledge of disease management-CF-adolescent questionnaire for Brazilian Portuguese
DOI:
https://doi.org/10.1590/Keywords:
Cystic Fibrosis, Patient Health Questionnaire, Knowledge Management, Health Knowledge, Attitudes, PracticeAbstract
This study aimed to cross-culturally adapt
the Knowledge of Disease Management-CF-Adolescent
(KDM-CF-Adolescent) questionnaire for Brazilian
Portuguese, as well as to test its measurement properties.
Cross-cultural adaptation followed five standardized
steps: translation; consensus version of the translation,
back translation, consensus version of back translation,
and application of the final version to 35 adolescent
patients with cystic fibrosis (FC), aged 11 to 20 years. Due
to the COVID-19 pandemic and social isolation measures,
the questionnaire was applied online using the Google
Forms. Data were subjected to Rasch analysis, using the
WINSTEPS software. There were no problems regarding
understanding the questions, so making changes in any
of the translated items was not necessary. The KDMCF-
Adolescent divided the sample into two levels of
knowledge and the items into three levels of difficulty,
leading to person and item reliability indices of 0.67 and
0.81, respectively and internal consistency of 0.69. All
items fit the Rasch model expectations, since all infit/outfit
and associated z-values were within the expected range.
The principal component analysis confirmed the existence
of two dimensions; however, they did not function as
independent scales. There was no duplication of any
content and no floor and/or ceiling effects were found.
The Brazilian Portuguese version of KDM-CF-Adolescent
questionnaire demonstrated satisfactory properties to
measure the knowledge adolescents with CF have about
the disease.
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