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Table 4 Reliability of test-retest scores of the Arabic version Oxford knee score (OKS-Ar)

From: Cross-cultural adaptation and psychometric analysis of the Arabic version of the oxford knee score in adult male with knee osteoarthritis

Items 1st Test (Mean ± SD) Re-test (Mean ± SD) ICC (95% CI) a P-value
Total 28.28 ± 12.80 28.47 ± 13.06 .97 (.96–.98) .84
1 3.18 ± 1.16 3.23 ± 1.168 .85 (.79–.90) .39
2 2.13 ± 1.06 2.14 ± 1.051 .94 (.91–.95) .78
3 2.21 ± 1.04 2.19 ± 1.024 .90 (.85–.93) .65
4 2.06 ± 1.11 2.12 ± 1.120 .91 (.86–.93) .20
5 2.46 ± 1.08 2.48 ± 1.174 .86 (.81–.91) .72
6 2.54 ± 1.37 2.51 ± 1.363 .92 (.89–.94) .56
7 2.57 ± 1.18 2.62 ± 1.220 .91 (.87–.94) .31
8 2.31 ± 1.21 2.31 ± 1.228 .90 (.85–.93) .98
9 2.22 ± 1.12 2.30 ± 1.165 .88 (.83–.92) .16
10 2.24 ± 1.17 2.30 ± 1.243 .90 (.86–.93) .24
11 2.10 ± 1.22 2.12 ± 1.210 .88 (.82–.91) .74
12 2.25 ± 1.23 2.23 ± 1.254 .91 (.88–.94) .68
  1. SD Standard deviation
  2. aWilcoxon sign ranked test