Characteristics of all patients with shoulder osteoarthritis (SOA) and those with primary centred and rotator cuff-related SOA
| Characteristics | Total | Rotator cuff-related SOA | Primary centred SOA | p Value |
| n=147 | n=48 (32.7%) | n=99 (67.4%) | ||
| Demographics | ||||
| Age, years | 75.8±10.0 | 72.4±11.0 | 77.5±9.1 | <0.01 |
| Women (%) | 101 (68.7%) | 31 (64.6%) | 70 (70.7%) | 0.45 |
| BMI | 27.2±4.9 | 27.3±4.5 | 27.2±5.0 | 0.86 |
| Inclusion centre | ||||
| 1 | 15 (10.2%) | 3 (6.3%) | 12 (12.1%) | <0.01 |
| 2 | 47 (32.0%) | 27 (56.3%) | 20 (20.2%) | <0.01 |
| 3 | 85 (57.8%) | 18 (37.5%) | 67 (67.7%) | <0.01 |
| Comorbidities | ||||
| Cardiovascular diseases* | 18 (13%) (139†) | 8 (20%) | 10 (10.1%) | 0.12 |
| Diabetes mellitus | 21 (14.3%) | 7 (14.6%) | 14 (14.1%) | 0.94 |
| Dyslipidemia | 51 (34.7%) | 15 (31.3%) | 36 (36.4%) | 0.54 |
| Hypertension | 95 (65.1%) (146†) | 30 (63.8%) | 65 (65.7%) | 0.83 |
| Obesity | 30 (22.1%) (136†) | 11 (23.4%) | 19 (21.4%) | 0.78 |
| Active smoking | 8 (6.1%) (132†) | 3 (7.0%) | 5 (5.6%) | 0.72 |
| Gout or hyperuricemia | 9 (6.1%) | 3 (6.3%) | 6 (6.1%) | 1 |
| Chondrocalcinosis | 5 (3.4%) | 1 (2.1%) | 4 (4.0%) | 1 |
| Hypothyroidism | 17 (11.6%) | 2 (4.2%) | 15 (15.2%) | 0.05 |
| Parkinson’s disease | 2 (1.4%) (139†) | 2 (5.0%) | 0 (0%) | 0.08 |
*Cardiovascular diseases includes: heart attack, coronary insufficiency, cardiac deficiency, stroke, thromboembolic event.
†Total number of analysed patients when missing data.
Data are no. (%) or mean±SD.