Translation, cross-cultural adaptation and validation of the polish version of the Oxford Shoulder Score in patients undergoing arthroscopic rotator cuff repair

Table 3 Internal consistency of OSS-PL

Item	Mean score ± SD	Item-total score correlation		Cronbach’s alpha
Item	Mean score ± SD	R	P	Cronbach’s alpha
1	2.77 ± 0.91	0.90	0.0000	0.96
2	3.01 ± 0.87	0.90	0.0000	0.93
3	3.41 ± 0.73	0.80	0.0000	0.97
4	3.45 ± 0.78	0.85	0.0000	0.94
5	3.14 ± 0.99	0.84	0.0000	0.94
6	3.17 ± 1.10	0.82	0.0000	0.97
7	2.96 ± 1.16	0.89	0.0000	0.96
8	2.61 ± 1.11	0.88	0.0000	0.96
9	2.67 ± 1.20	0.93	0.0000	0.96
10	3.19 ± 1.05	0.89	0.0000	0.96
11	2.77 ± 0.99	0.86	0.0000	0.96
12	2.90 ± 1.15	0.84	0.0000	0.97

SD standard deviation, r value of Spearman correlation coefficient, p probability value

ISSN: 1477-7525