Translation and cross-cultural adaptation into Portuguese-Brazil of NuHISS, Enlight, and uMARS

Easy access to the Internet enables the creation of many online applications. In this sense, questionnaires were developed to evaluate the usability of health area online applications: the National Usability-Focused Health Information System Scale (NuHISS), the Enlight, and the User Version of the Mobile Application Rating Scale (uMARS). Those scales do not have a Portuguese (Brazil) version which is adequate to Brazil's culture. As a consequence, they can not be properly used in Brazil. To translate and cross-cultural adapt the NuHISS, Enlight, and uMARS to Portuguese (Brazil). A methodological study involving the translation and cross-cultural adaptation of the questionnaires NuHISS, Enlight, and uMARS was conducted following international guidelines recommendations. The questionnaires pass trough an initial translation, translation synthesis, back translation, expert committee, and a pre-final version test. Thirdy-two health professionals analyzed NuHiss, Enlight, and uMARS translated and cross-cultural adapted Portuguese (Brazil) version. There was conceptual equivalence between the translated and original versions, and no significant adaptations were needed during the translation process. 93.8% of professionals assume that the language is cohesive and 96.9% of them consider that the content is cohesive. The NuHISS, Enlight, and uMARS were successfully translated and cross-culturally adapted to Portuguese (Brazil) and can be properly applied in Brazil. Brazilian health professionals should use the questionnaires NuHISS, Enlight, and uMARS to evaluate health area applications usability.