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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