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Reliability of foot posture index (FPI-6) for evaluating foot posture in patients with knee osteoarthritis.
Wang, Yi; Chen, Zehua; Wu, Zugui; Li, Junyi; Li, Congcong; Yang, Jiaman; Chen, Weijian; Ye, Zixuan; Shen, Xinxin; Jiang, Tao; Liu, Wengang; Xu, Xuemeng.
Affiliation
  • Wang Y; The Fifth Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China.
  • Chen Z; The Orthopedics Hospital of Traditional Chinese Medicine Zhuzhou city, Zhuzhou, China.
  • Wu Z; The Fifth Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China.
  • Li J; The Fifth Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China.
  • Li C; The Fifth Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China.
  • Yang J; The Fifth Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China.
  • Chen W; The Fifth Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China.
  • Ye Z; The Fifth Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China.
  • Shen X; The Fifth Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China.
  • Jiang T; Guangdong Provincial Second Hospital of Traditional Chinese Medicine, Guangzhou, China.
  • Liu W; Guangdong Provincial Second Hospital of Traditional Chinese Medicine, Guangzhou, China.
  • Xu X; The Fifth Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China.
Front Bioeng Biotechnol ; 11: 1103644, 2023.
Article in En | MEDLINE | ID: mdl-36741758
Objective: To determine the reliability of FPI-6 in the assessment of foot posture in patients with knee osteoarthritis (KOA). Methods: Thirty volunteers with KOA (23 females, 7 males) were included in this study, assessed by two raters and at three different moments. Inter-rater and test-retest reliability were assessed with Cohen's Weighted Kappa (Kw) and Intraclass Correlation Coefficient (ICC). Bland-Altman plots and respective 95% limits of agreement (LOA) were used to assess both inter-rater and test-retest agreement and identify systematic bias. Moreover, the internal consistency of FPI-6 was assessed by Spearman's correlation coefficient. Results: FPI-6 total score showed a substantial inter-rater (Kw = .66) and test-retest reliability (Kw = .72). The six items of FPI-6 demonstrated inter-rater and test-retest reliability varying from fair to substantial (Kw = .33 to .76 and Kw = .40 to .78, respectively). Bland-Altman plots and respective 95% LOA indicated that there appeared no systematic bias and the acceptable agreement of FPI-6 total score for inter-rater and test-retest was excellent. There was a statistically significant positive correlation between each item and the total score of FPI-6, which indicated that FPI-6 had good internal consistency. Conclusion: In conclusion, the reliability of FPI-6 total score and the six items of FPI-6 were fair to substantial. The results can provide a reliable way for clinicians and researchers to implement the assessment of foot posture in patients with KOA.
Key words

Full text: 1 Collection: 01-internacional Database: MEDLINE Type of study: Prognostic_studies Language: En Journal: Front Bioeng Biotechnol Year: 2023 Document type: Article Affiliation country: Country of publication:

Full text: 1 Collection: 01-internacional Database: MEDLINE Type of study: Prognostic_studies Language: En Journal: Front Bioeng Biotechnol Year: 2023 Document type: Article Affiliation country: Country of publication: