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Table 4 Comparisons of return to sports activities and impact level between age groups

From: Return to sports activity after opening wedge high tibial osteotomy in patients aged 70 years and older

  Overall  < 70 years  ≥ 70 years *P value
(n = 74) (n = 36) (n = 38)
Preop. total participation in sports, n (%) 59 (79.7) 25 (69.4) 34 (89.5) 0.10
RTS 55 (93.2) 24 (96.0) 31 (91.2) 0.32
Postop. new participation in sports, n 7 5 2  
Postop. total participation in sports, n 62 29 33  
Preop. impact level, n High 12 11 1  
Intermediate 5 2 3  
Low 42 12 30  < 0.01
Postop. impact level, n high 7 6 1  
Intermediate 2 1 1  
Low 53 22 31 0.18
  1. * < 70 years vs ≥ 70 years
  2. RTS return to sports