Assessing the validity and reliability of the Turkish version of the Trunk Impairment Scale in stroke patients

Abstract

OBJECTIVE: To determine the validity and reliability of the Turkish version of the Trunk impairment scale (TIS), used in theevaluation of somatic, motor, and coordination disturbances in stroke patients, and provide a culturally adapted version foruse in the Turkish population.METHODS: A total of 80 patients who were either hospitalized at our facility and rehabilitated for stroke or admitted at ouroutpatient clinics were included in this study. Reliability was evaluated by the internal consistency (Cronbach α) and testreproducibility [intra-class correlation coefficient (ICCC)] methods, and validity was evaluated by the correlation betweensubgroups and the total scores of the TIS and Berg Balance Scale (BBS), Brunnstrom phases, Barthel index (BI), Rivermeadmobility index (RMI), and Short Form-36 (SF-36) scores.RESULTS: The mean age of the patients was 63.00±12.1 years. Out of a total of 80 subjects, 34 were female and 46 weremale. The reliability of the scale was evaluated by the internal consistency, inter- and intra-observer reliability, and test reproducibility. The findings showed that the Turkish form of the scale was reliable at a good level. The test values were as follows;Cronbach α: >0.70, ICCC: 0.969–1, subgroups and total score comparison: 0. The correlation between TIS and BBS wasconsiderably high in the validity analysis (p