Table 2 Analysis of the relationship between baseline SPADI and the MRI total score and individual structural changes at MRI, calculated by multiple regression analysis, adjusting for age, gender, work status, education and emotional distress
|  | Structural change present | SPADI baselinea | Diff SPADI baseline (β) | P value | 95% confidence interval |
|---|---|---|---|---|---|
MRI total score | – | – | −3.1 | 0.03 | −5.9 to −0.34 |
Bursitis | YES | 51.5 (17.1) | −3.1 | 0.35 | −9.6 to 3.4 |
NO | 53.9 (16.8) | ||||
Tendinosis in rotator cuff | YES | 52.8 (16.8) | 2.1 | 0.58 | −5.3 to 9.4 |
NO | 51.2 (17.8) | ||||
Calcification in rotator cuff | YES | 46.1 (12.8) | −8.2 | 0.03 | −15.4 to −1.1 |
NO | 54.4 (17.7) | ||||
Partial tear in rotator cuff | YES | 50.1 (15.0) | −3.6 | 0.33 | −10.9 to 3.7 |
NO | 53.6 (17.9) | ||||
AC joint osteoarthritis | YES | 51.8 (17.8) | −3.5 | 0.35 | −11.1 to 4.0 |
NO | 53.9 (14.8) |