The Turkish Journal of Pediatrics 2014 , Vol 56 , Num 6
Turkish Version of the Egen Klassifikation Scale Version 2: Validity and Reliability in the Turkish Population
Departments of Physiotherapy and Rehabilitation, Faculty of Health Sciences, 1Bezmialem Vakıf University, İstanbul, 2Hacettepe University, Ankara, and 3Eastern Mediterranean University, Magusa, Northern Cyprus, and 4Division of Pediatric Neurology, Faculty of Medicine, Hacettepe University, Ankara, Turkey. E-mail: The Egen Klassifikation Scale version 2 (EK2) is an important functional ability assessment scale for nonambulant neuromuscular patients. We investigated the validity and reliability of the EK2 scale in Turkish Duchenne muscular dystrophy (DMD) and spinal muscular atrophy (SMA) patients. Forty-one patients were included in the study. An intra/interobserver reliability study of the EK2 scale as translated into Turkish was performed. The Brooke Functional Classification Scale (BFC) for Upper and Lower Extremities, 10-item Modified Barthel’s Index for Activities of Daily Living (MBI), and Pulmonary Dysfunction Index (PDI) were used to investigate the validity of the Turkish version of the EK2 scale. Cronbach’s alpha was 0.81 and ICC was 0.87 with a 95% confidence interval (r=0.92, p<0.01). There were positive, moderate correlations between the EK2 sum score and the BFC upper extremity level and between the EK2 sum score and the PDI, and a negative, moderate correlation between the EK2 sum score and the MBI (p≤0.01). The Turkish version of the EK2 scale was found to be highly reliable and valid. Keywords : neuromuscular diseases, Duchenne muscular dystrophy, spinal muscular atrophy, Egen Klassifikation Scale, validity and reliability.
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