| Normal group | Cuff tear group | P value* |
number/shoulder | 20/27 | 15/19 | Not available |
Age, years | 41.4 ± 22.9 | 67.2 ± 10.9 | <0.0001 |
Sex, male: female, n (%) | 12 (60):8 (40) | 7 (47):8 (53) | 0.4332 |