Table 3 Severity of knee abnormalities in subjects stratified by sex. Severity presented as median (interquartile range) for subjects with any abnormality, i.e. WORMS score ≥ 1, for each feature. P-values are from Mann Whitney U tests of scores from all subjects in each sex group
From: MRI findings of knee abnormalities in adolescent and adult volleyball players
Baseline | Follow-up | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Males (n = 17) | Females (n = 19) | Males (n = 17) | Females (n = 19) | |||||||
n | Severity | n | Severity | p-value | n | Severity | n | Severity | p-value | |
Cartilage abnormalities | 6 | 5 (4.3, 5) | 6 | 2.8 (1.4, 3) | 0.438 | 7 | 5 (4.5, 5.5) | 6 | 3 (1.5, 4.5) | 0.328 |
Bone marrow lesions | 7 | 2 (1.5, 2) | 5 | 1 (1, 1) | 0.204 | 7 | 2 (1.5, 3) | 7 | 1 (1, 1.5) | 0.457 |
Subarticular cysts | 4 | 1.5 (1, 2) | 3 | 1 (1,2) | 0.535 | 4 | 1.5 (1, 2) | 3 | 1 (1, 1.5) | 0.535 |
Osteophytes | 15 | 3 (2, 4) | 19 | 2 (1, 2) | 0.462 | 15 | 2 (2, 4.5) | 19 | 2 (1, 2.5) | 0.279 |
Ligamentous lesions | 2 | 0.8 (0.6, 0.9) | 0 | – | 0.129 | 2 | 0.8 (0.6, 0.9) | 0 | – | 0.129 |
Meniscal lesions | 6 | 1.5 (1, 2.8) | 9 | 2 (1, 2) | 0.51 | 7 | 2 (1, 2) | 9 | 2 (1, 2) | 0.843 |