Cross-cultural adaptation and evaluation of validity and reliability of Trinity amputation and prosthesis experience scales in an Iranian people with lower limb amputation

One of the main goals of health service, especially for the lower limb amputates patients, is the quality of life improvement. So it is necessary to use special instrument to evaluate the quality of life of these people. Trinity amputation and prosthesis experience scales (TAPES) evaluate outcomes in lower limb amputee physically, socially and psychologically. The goal of this study was to study cross-cultural adaptation and evaluation of validity and reliability of TAPES in an Iran population. TAPES was translated and adapted to Persian language with International quality of life assessment (IQOLA) method. To evaluate validity, a sample of 104 patients with lower limb amputation was asked to complete questionnaires. For evaluation of reliability, 41 patients were tested again 5-7 days later. Retinal reliability by all subscales with the exception of social restriction subscale was exceeded minimum level of 0.70. Minimum Cronbach’s alpha level of 0.70 was exceeded by all subscales with the exception of social adjustment subscale. Correlation of each item with its subscale after correction for overlap, by all except for two items was exceeded optimal level of 0.40. Most subscales exception of social adjustment subscale had most correlation with physical summery measure of SF-36 scale. The Persian-version of the TAPES is a culturally-adapted, reliable and valid outcome measure to be used in Iranian patients with lower limb amputation.