Table 3.

Internal consistency of the Arabic version of the Oxford Knee Score (OKS-Ar)

Items	Mean score ± SD	Corrected item-total correlation	Alpha if item deleted
1	3.18 ± 1.16	.83	.98
2	2.13 ± 1.06	.92	.97
3	2.21 ± 1.04	.93	.97
4	2.06 ± 1.11	.89	.98
5	2.46 ± 1.08	.88	.98
6	2.54 ± 1.37	.88	.98
7	2.57 ± 1.18	.90	.97
8	2.31 ± 1.21	.91	.97
9	2.22 ± 1.12	.90	.97
10	2.24 ± 1.17	.90	.97
11	2.10 ± 1.22	.86	.98
12	2.25 ± 1.23	.91	.97

SD Standard deviation