To investigate test-retest reliability of the NDI-RU, we used intraclass correlation coefficient, 2-way random-effects model (ICC (2,1)26). After varimax rotation had been applied, the items with the factor loading greater than 0.40 were included in the factor. Moderate correlation (Spearman rs = 0.62 P 1). Intraclass correlation coefficients for test-retest reliability coefficients ranged from 0.65 to 0.92 for different items and 0.91 for the total NDI-RU. Interitem correlation coefficient was 0.53.
Bakhtadze, MD, PhD, Department of Neurology, Neurosurgery, and Medical Genetics, Russian National Research Medical University (named after N.I. Address correspondence and reprint requests to Maxim A. No relevant financial activities outside the submitted work. No funds were received in support of this work. The manuscript submitted does not contain information about medical device(s)/drug(s).
NECK DISABILITY INDEX SPANISH PDF MANUAL
Pirogov), and Department of Manual Therapy, Center for Manual Therapy, Moscow, Russia †Canadian Memorial Chiropractic College, Toronto, Ontario, Canada and ‡Department of Physiotherapy, Moscow City Hospital, Moscow, Russia. The averageįrom the *Department of Neurology, Neurosurgery and Medical Genetics, Russian National Research Medical University (named after N. A 2-factor solution was found for the NDI-RU. Good values of Cronbach α were obtained for each item (from 0.80 to 0.84) and for the total NDI-RU (0.83). NDI-RU total scores were distributed normally.
A culturally valid translation was achieved. Two hundred thirty-two patients took part in the study in total: 109 in validity (39.5 ± 10 yr), 123 in reliability (38.4 ± 11 yr 80 in the test-retest phase). Then, the NDI-RU was evaluated for content validity, concurrent criterion validity, internal consistency, test-retest reliability, factor structure, and minimum detectable change. Cross-cultural adaptation of the NDI-RU was performed according to established guidelines. However, the Russian language version of the NDI has not been developed yet. Its translated versions are applied in many countries. The Neck Disability Index (NDI) is the most frequently used scale for self-rating of disability due to neck pain. Neck pain is highly prevalent and can greatly affect daily activity.
To perform a validated Russian translation and then to evaluate the validity and reliability of the Russian language version of the Neck Disability Index (NDI-RU). Cross-cultural adaptation and psychometric testing. Bakhtadze, MD, PhD,* Howard Vernon, DC, PhD,† Olga B. The Neck Disability Index–Russian Language Version (NDI-RU) A Study of Validity and Reliability Maxim A. SPINE Volume 40, Number 14, pp 1115-1121 ©2015, Wolters Kluwer Health, Inc.
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