ABSTRACT
Background: The Ibadan Knee/Hip Osteoarthritis Outcome Measure (IKHOAM) an outcome measure developed for evaluating the outcome of therapeutic interventions in patients with knee and/or hip osteoarthritis (OA) in Nigerian clinical settings and similar environment. The aim of this study was to investigate the reliability of the English version of the IKHOAM. Methods: Fifty-four English-speaking patients with OA of knee/hip from physiotherapy clinics of all secondary and tertiary health institutions in Ibadan participated in this cross-sectional survey. The participants completed the self-reported parts of IKHOAM at 48-hr interval. Clinician-measured part of IKHOAM was administered once to each participant by three physiotherapists at the same time and for a second time by one of the physiotherapists after 48 hr. Data were summarized using descriptive statistics (mean, standard deviation, and percentage) and analyzed using intraclass correlation coefficient and Spearman rank order correlation. Results: The test–retest reliability for patient measured ranged from 0.94–0.99 (p < 0.01), while the intrarater reliability and interrater reliability for the clinician measured of the English version of the IKHOAM were 0.96 (p < 0.05) and 0.60 (p < 0.05), respectively. Conclusion: The English version of the IKHOAM is a reliable outcome measure, and it is recommended for integration in the assessment of patients with knee and/or hip OA in Nigerian clinical settings and similar environment.
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