Table 3 Analysis of the relationship between the change in SPADI over one year and the MRI total score and individual structural changes at MRI, calculated by multiple regression analysis, adjusting for baseline SPADI, age, gender, work status, education and emotional distress
|  | Structural change present | Change in SPADI from baseline to one year follow upa | Diff change SPADI (β) | P value | 95% confidence interval |
|---|---|---|---|---|---|
MRI total score | – | – | −8.1 | < 0.001 | −12.3 to −3.8 |
Bursitis | YES | 18.4 (26.0) | 10.2 | 0.04 | 0.3 to 20.1 |
NO | 28.0 (24.5) | ||||
Tendinosis in rotator cuff | YES | 18.8 (25.7) | 14.1 | 0.01 | 3.3 to 25.0 |
NO | 31.1 (23.9) | ||||
Calcification in rotator cuff | YES | 13.9 (27.4) | 7.0 | 0.22 | −4.2 to 18.1 |
NO | 24.9 (24.7) | ||||
Partial tear in rotator cuff | YES | 20.2 (24.2) | 2.4 | 0.69 | −9.5 to 14.3 |
NO | 23.1 (26.6) | ||||
AC joint osteoarthritis | YES | 19.2 (24.9) | 10.8 | 0.08 | −1.1 to 22.6 |
NO | 29.8 (26.9) |