Table 2 Comparison of baseline characteristics between training set and validation set
Variables | Training set (n = 186) | Validation set (n = 81) | P value |
|---|---|---|---|
Sex | Â | Â | 0.608 |
 Male | 34 (18.3%) | 12 (14.8%) |  |
 Female | 152 (81.7%) | 69 (85.2%) |  |
Age(years) | 71.5 [65.0,78.0] | 71.0 [64.0,77.0] | 0.697 |
BMI(kg/m2) | 23.8 [21.8,25.3] | 23.1 [21.2,25.2] | 0.476 |
Bone mineral density (T score) | -2.60 [-3.10,-2.50] | -2.50 [-2.90,-2.50] | 0.199 |
Dypertension history | Â | Â | 0.796 |
 Yes | 87 (46.8%) | 40 (49.4%) |  |
 No | 99 (53.2%) | 41 (50.6%) |  |
Diabetes history | Â | Â | 0.941 |
 Yes | 23 (12.4%) | 11 (13.6%) |  |
 No | 163 (87.6%) | 70 (86.4%) |  |
Time from fracture to surgery (4Â weeks yes/no) | Â | Â | 0.257 |
 Yes | 58 (31.2%) | 19 (23.5%) |  |
 No | 128 (68.8%) | 62 (76.5%) |  |
Posterior fascia oedema | Â | Â | 0.492 |
 Yes | 33 (17.7%) | 18 (22.2%) |  |
 No | 153 (82.3%) | 63 (77.8%) |  |
IVC | Â | Â | 1 |
 Yes | 23 (12.4%) | 10 (12.3%) |  |
 No | 163 (87.6%) | 71 (87.7%) |  |
Sarcopenia | Â | Â | 0.999 |
 Yes | 43 (23.1%) | 18 (22.2%) |  |
 No | 143 (76.9%) | 63 (77.8%) |  |
Bone cement distribution | Â | Â | 1 |
 Yes | 31 (16.7%) | 13 (16.0%) |  |
 No | 155 (83.3%) | 68 (84.0%) |  |
ISLD | Â | Â | 0.922 |
 Yes | 44 (23.7%) | 18 (22.2%) |  |
 No | 142 (76.3%) | 63 (77.8%) |  |
Cement volume(ml) | 6.00 [6.00, 8.88] | 6.00 [6.00, 8.00] | 0.825 |
Bone cement leakage | Â | Â | 0.621 |
 Yes | 24 (12.9%) | 8 (9.88%) |  |
 No | 162 (87.1%) | 73 (90.1%) |  |
Pre-LKA (°) | 17.0 [14.0, 23.0] | 17.0 [14.0, 21.0] | 0.687 |
Pro-LKA (°) | 12.0 [9.00, 16.8] | 12.0 [10.0, 15.0] | 0.903 |
Pre-AVH (%) | 59.0 [56.0, 61.0] | 59.0 [57.0, 61.0] | 0.625 |
Pro-AVH (%) | 79.0 [77.2, 82.0] | 79.0 [77.0, 81.0] | 0.51 |