The World Health Organization developed an instrument to assess quality of life in the framework of a collaborative multicentric project. The methodology and the different stages of developing the original instrument are described. Next, the developing of the portuguese version is presented. Through a singular methodology, translation and discussion in focal groups with community members, patients and health professionals were performed, followed by back translation. The goal of the focal groups was to discuss adequacy of translation and items selection for assessing quality of life in a brazilian city (Porto Alegre). The work in focal groups showed that the World Health Organization instrument to assess quality of life (WHOQOL-100) is ready to be piloted in Brazil in its portuguese version.
Quality of life; World Health Organization; cross-cultural; validity; rating scale
