Table 5.

Test-retest reliability and internal consistency of Spanish SPADI and OSS versions, and previous studies

Shoulder and pain disability index
Studies		Test-retest reliability (ICC)			Internal consistency
		Pain subscale	Disability subscale	Total	Pain subscale	Disability subscale	Total
Present study		0.98	0.99	0.99	0.93	0.95	0.96
Roach et al. [23]	1991	0.64	0.64	0.66	0.88	0.87	0.89
Beaton & Richard [53]	1998	-	-	0.91	-	-	-
Heald et al. [54]	1997	-	-	-	0.89	0.95	0.96
Roddey et al. [25]	2000	-	-	-	0.89	0.95	0.96
Schmitt & di Fabbio [55]	2004	-	-	0.86	-	-	-
MacDermid et al. [22]	2006	-	-	-	0.92	0.93	0.95
Angst et al. [46]	2007	0.89	0.93	0.94	0.92	0.93	0.95
Ekeberg et al. [24]	2008	0.72	0.85	0.85	0.74	0.89	0.91
Bumin et al. [38]	2008	0.83	0.83	-	-	-	-
Jamnik & Spevak [44]	2008	0.89	0.95	0.94	0.78	0.90	0.92
Guermazi et al. [47]	2011	-	-	0.91	-	-	0.96
Martins et al. [45]	2011	0.94	0.90	0.94	0.88	0.87	0.89
Christiansen et al. [41]	2012	0.88	0.84	0.88	0.85	0.93	0.94
Marchese et al. [48]	2012	-	-	0.91	-	-	0.89
Oxford Shoulder Score
		Test-retest reliability (ICC)			Internal consistency
Present study		0.97			0.94
Dawson et al. [20]	1996	-			0.89 Pre-operative; 0.92 Post-operative
Huber et al. [43]	2004	0.98			0.94
Berendes et al. [40]	2010	0.98			0.92
Murena et al. [49]	2010	0.97			0.95
Tuğay et al. [39]	2011	0.97			0.92
Frich et al. [42]	2011	0.98			0.93
Roh et al. [50]	2012	0.95			0.91
ICC: interclass correlation coefficient