Table 1 Characteristics of ONFH patients and controls
From: Significant associations of PAI-1 genetic polymorphisms with osteonecrosis of the femoral head
Controls | Patients | ||||
|---|---|---|---|---|---|
(n = 251) | Total (n = 206) | Idiopathic (n = 98) | Alcohol-induced (n = 72) | Steroid-induced (n = 36) | |
Age (year)a | 47.8 ± 12.6 | 44.2 ± 11.6 | 44.9 ± 12.3 | 45.7 ± 10.2 | 39.3 ± 10.9 |
Sex (M/F) | 193/58 | 159/47 | 78/20 | 62/10 | 19/17 |
BMI (kg/m2)a | 23.6 ± 3.5 | 24.2 ± 3.3 | 24.4 ± 3.6 | 24.1 ± 2.9 | 24.4 ± 3.3 |