An Indonesian Version of Validity and Reliability Test of Knee Outcome Survey - Activities of Daily Living Scale in Knee Osteoarthritis ABSTRACT Introduction: Knee osteoarthritis (OA) symptoms greatly limit daily activities and cause functional disability

Abstract


 
 
 
 
 
 
 
 
 
 Introduction. Knee osteoarthritis (OA) symptoms greatly limit daily activities and cause functional disability, limiting participation and reducing quality of life. It is necessary to evaluate patients’ perspectives to clinical outcomes regarding the quality and success of knee OA management. The Knee Outcome Survey Activity Daily Living Scale (KOS-ADLS) is an instrument to assess these perspectives. This study tests the validity and reliability of a translation of KOS-ADLS.
 Methods. This study is a cross-sectional study involving 65 subjects and was conducted in the Medical Rehabilitation Department, Musculoskeletal division of Cipto Mangunkusumo Hospital from 01/10/2020 to 31/08/2021. Results from the Indonesia translation of KOS-ADLS (KOS-
 
 
 
 
 
 
 
 
 ADLS-Ina) were tested for validity with Pearson correlation with p<0.05 and r>0.3 and reliability was tested with internal consistency of α-cronbach and Intraclass Correlation Coefficient ≥ 0.7.Results. The correlation value for total items was 0.461–0.792. As for the internal consistency the α-cronbach set at 0.911 and ICC was 0.969 (0.950–0.981). KOS-ADLS-Ina is proved that both Pearson’s correlation and internal consistency values have value above the minimal intended value with significancy p<0.05.
 Conclusions. KOS-ADLS-Ina is demonstrated to be a valid and reliable functional capacity instrument to be used in the Indonesian population.