Premium
Cultural adaptation, translation and validation of a functional outcome questionnaire (TESS) to Portuguese with application to patients with lower extremity osteosarcoma
Author(s) -
Saraiva Daniela,
de Camargo Beatriz,
Davis Aileen M.
Publication year - 2008
Publication title -
pediatric blood and cancer
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.116
H-Index - 105
eISSN - 1545-5017
pISSN - 1545-5009
DOI - 10.1002/pbc.21392
Subject(s) - medicine , internal consistency , portuguese , physical therapy , rehabilitation , brazilian portuguese , psychometrics , clinical psychology , philosophy , linguistics
Background Evaluation of physical functioning is an important tool for planning rehabilitation. Instruments need to be culturally adapted for use in non‐English speaking countries. The aim of this study was to culturally adapt, including translation and preliminary validation, the Toronto extremity salvage score (TESS) for Brazil, in a sample of adolescents and young adults treated for lower extremity osteosarcoma. Procedure The process included two independent forward translations of TESS questionnaire, consensus between translators on a forward translation, back‐translation by two independent translators, and a review of the back‐translations. Internal consistency of the TESS and known groups validity were also evaluated. Results Internal consistency for the 30 item TESS was high (coefficient alpha = 0.87). TESS score ranges from 0 to 100. Forty‐eight patients completed the questionnaire and scores ranged from 56 to 100 (mean score: 89.6). Patients receiving no pain medications scored higher on the TESS than those who were receiving pain medication ( P = 0.014), and patients using walking aids had slightly higher but not statistically different scores. Those who were treated with amputation had higher scores than those who were treated with limb salvage procedures ( P = 0.003). Conclusion Preliminary evidence suggests that Brazilian‐Portuguese translation is acceptable, understandable, reliable, and valid for evaluating the function in adolescents and young adults with osteosarcoma in lower extremity in Brazil. Pediatr Blood Cancer 2008;50:1039–1042. © 2007 Wiley‐Liss, Inc.