Spearman correlation coefficients of the SRPQ and other instruments assessing generic or disease-specific (aspects of) health in AS
| SF-36 PCS | SF-36 MCS | SWLS | BASDAI | BASFI | |
|---|---|---|---|---|---|
| SRPQ dimension (average all roles) | |||||
| Role importance | 0.146 | 0.004 | 0.166 | −0.040 | −0.260 |
| Satisfaction time* | 0.335 | 0.528 | 0.656 | −0.339 | −0.359 |
| Satisfaction performance* | 0.504 | 0.490 | 0.653 | −0.483 | −0.546 |
| Physical difficulty | 0.691 | 0.350 | 0.468 | −0.636 | −0.723 |
| SRPQ general participation item | |||||
| Role importance | 0.108 | −0.004 | 0.168 | 0.002 | −0.157 |
| Satisfaction time | 0.383 | 0.503 | 0.649 | −0.370 | −0.380 |
| Satisfaction performance | 0.439 | 0.422 | 0.652 | −0.415 | −0.426 |
| Physical difficulty | 0.634 | 0.379 | 0.457 | −0.583 | −0.585 |
*Average scores of the ‘satisfaction’ dimensions could only be calculated for 235 of the 246 patients.
AS, ankylosing spondylitis; BASDAI, Bath Ankylosing Spondylitis Disease Index; BASFI, Bath Ankylosing Spondylitis Functioning Index; MCS, Mental Component Score; PCS, Physical Component Score; SF-36, 36-item Short Form Health Survey; SRPQ, Social Role Participation Questionnaire; SWLS, Satisfaction With Life Scale.