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Table 3 Subgroup analysis of association between fabella and MM tear a

From: The prevalence and parameters of fabella and its association with medial meniscal tear in China: a retrospective study of 1011 knees

Subgroup MM tear Absent Present P value
MM tear location b
Anterior Yes 6 (18.2) 27 (81.8)  < 0.001
  No 603 (61.7) 375 (38.3)  
Middle Yes 40 (31.5) 87 (68.5)  < 0.001
  No 569 (64.4) 315 (35.6)  
Posterior Yes 55 (33.7) 108 (66.3)  < 0.001
  No 554 (65.3) 294 (34.7)  
Age
 < 50 Yes 22 (39.3) 34 (60.7)  < 0.001
  No 453 (65.9) 204 (31.1)  
 ≥ 50 Yes 39 (31.7) 88 (69.3)  < 0.001
  No 95 (55.6) 76 (44.4)  
  1. aValues are presented as n (%). P values refer to chi-square test for pooled values. MM medial meniscus. bOne knee may present more than one location of MM tear