Table 1 Baseline characteristics
|  | Group A(n = 53) | Group B(n = 72) | P value |
|---|---|---|---|
Gender | 0.907 | ||
 Male | 23(43.40%) | 32(44.44%) |  |
 Female | 30(56.60%) | 40(55.56%) |  |
Age (y) | 75.26 ± 6.65 | 76.83 ± 6.16 | 0.176 |
Fracture side | 0.110 | ||
 Left | 24(45.28%) | 43(59.72%) |  |
 Right | 29(54.72%) | 29(40.28%) |  |
Evans classification | 0.910 | ||
 I b | 12(22.64%) | 18(24.32%) |  |
 I c | 9(16.98%) | 15(20.27%) |  |
 I d | 15(28.30%) | 19(26.39%) |  |
 II | 17(32.08%) | 20(27.78%) |  |
AO/OTA classification | 0.867 | ||
 31-A1 | 12(22.64%) | 18(24.32%) |  |
 31-A2 | 24(45.28%) | 34(47.22%) |  |
 31-A3 | 17(32.08%) | 20(27.78%) |  |
Comorbidities | |||
 Osteoporosis | 45(84.91%) | 58(80.56%) |  |
 Cardiovascular and cerebrovascular diseases | 20(34.74%) | 33(45.83%) |  |
 Respiratory disease | 8(15.09%) | 12(16.67%) |  |
 Diabetes mellitus | 15(28.30%) | 18(25.00%) |  |
Hospital stay (d) | 14.00 (2.00) | 14.00 (1.00) | 0.062 |