| Initial fracture | Contralateral hip fracture | P value |
---|---|---|---|
Fracture type | Â | Â | 0.135 |
 Femoral neck | 90 (49.7%) | 71 (39.2%) |  |
 Intertrochanteric | 91 (50.3%) | 107 (59.1%) |  |
 Subtrochanteric | 0 (0%) | 3 (1.7%) |  |
Fracture classification | |||
 Femoral neck | 90 (100.0%) | 71 (100.0%) | 0.893 |
  Stable patterns | 27 (30.0%) | 22 (31.0%) |  |
   B1.1 | 11 (12.2%) | 10 (14.1%) |  |
   B1.2 | 2 (2.2%) | 3 (4.2%) |  |
   B2.1 | 3 (3.3%) | 1 (1.4%) |  |
   B3 | 11 (12.2%) | 8 (11.3%) |  |
  Unstable patterns | 63 (70.0%) | 49 (69.0%) |  |
   B1.3 | 55 (61.1%) | 46 (64.8%) |  |
   B2.2 | 5 (5.6%) | 3 (4.2%) |  |
   B2.3 | 3 (3.3%) | 0 (0%) |  |
Intertrochanteric | 91 (100.0%) | 107 (100%) | 0.347 |
  Stable patterns | 77 (84.6%) | 85 (79.4%) |  |
   A1.2 | 19 (20.9%) | 22 (20.6%) |  |
   A1.3 | 58 (63.7%) | 63 (58.9%) |  |
  Unstable patterns | 14 (15.4%) | 22 (20.6%) |  |
   A1.1 | 0 | 1 (0.9%) |  |
   A2.2 | 3 (3.3%) | 8 (7.5%) |  |
   A2.3 | 5 (5.5%) | 6 (5.6%) |  |
   A3.1 | 2 (2.2%) | 2 (1.9%) |  |
   A3.2 | 1 (1.1%) | 1 (0.9%) |  |
   A3.3 | 3 (3.3%) | 4 (3.7%) |  |