Table 1 Patient demographics and preoperative characteristics
Characteristics | Study group (Mean ± SD) (n = 37) | Control group (Mean ± SD) (n = 37) | p value |
|---|---|---|---|
Age (years) | 48.5 ± 13.5 | 52.2 ± 11.4 | 0.2 |
Sex (Male: female) | 24: 13 | 23: 14 | 0.8 |
BMI | 26.2 ± 1.5 | 26.8 ± 1.6 | 0.1 |
Pre-op Hb (g/100 mL) | 13.2 ± 1.5 | 13.3 ± 1.4 | 0.7 |
Pre-op Hct (%) | 36.9 ± 3.8 | 36.7 ± 3.3 | 0.8 |
Cause of osteonecrosis (No. of patients) | |||
Steroid intake | 11 | 10 | 0.7 |
Alcoholism | 6 | 4 | |
Idiopathic | 20 | 23 | |