Table 6.
Construct validity of the SPADI scale.
| VAS |
OSS |
DASH |
SF-36 |
|||||
|---|---|---|---|---|---|---|---|---|
| r | p | r | p | r | P | r | p | |
| Pain subscale | 0.54 | <0.001* | 0.74 | <0.001* | 0.67 | <0.001* | −0.27 | 0.04* |
| Disability subscale | 0.49 | 0.0001* | 0.78 | <0.001* | 0.73 | <0.001* | −0.26 | 0.046* |
| Total score | 0.52 | <0.001* | 0.77 | <0.001* | 0.76 | <0.001* | −0.29 | 0.02* |
VAS: visual analogic scale; OSS: oxford shoulder score; DASH: Disability of the Arm, Shoulder and Hand scale; SF-36: 36-item short form health survey; r = Pearson's or Spearman correlation coefficient.
*
Statistical significance was set at p < 0.05.