Table 3 Baseline patient characteristics
Variable | Group A (N = 16) | Group B (N = 14) | p value |
|---|---|---|---|
Side of treated hip | |||
 Left (%) | 10 (62.5%) | 6 (42.9%) | >  0.05 |
 Right (%) | 6 (37.5%) | 8 (57.1%) | >  0.05 |
Age (mean ± SD) | 30.69 ± 5.87 | 30.43 ± 4.45 | >  0.05 |
Gender (male/female) | 10/6 | 9/5 | >  0.05 |
Preoperative HHS (mean ± SD) | 68.67 ± 8.38 | 75.01 ± 6.37 | >  0.05 |
Preoperative necrotic area ratio (%) | 34.17 ± 9.01 | 37.05 ± 10.29 | >  0.05 |
MNC concentration (× 109/L, mean ± SD) | 9.94 ± 1.46 | 10.04 ± 1.47 | >  0.05 |
Hospitalization expense ($) | 3203.31 ± 115.23 | 3190.14 ± 134.37 | >  0.05 |