Table 1 Demographic data
| Â | Non-traumatic ONFH patients (n = 99) | Healthy controls (n = 95) | P value |
|---|---|---|---|
Age (years) | 51.1 ± 11.0 | 51.7 ± 10.7 | 0.244 |
Sex (F/M) | 40/59 | 38/57 | 0.187 |
BMI (kg/m2) | 23.7 ± 2.3 | 23.5 ± 1.5 | 0.246 |
Disease duration (months) | 85.3 (3–250) | / |  |
VAS scores | 5.0 ± 1.9 | / |  |
HSS scores | 67.6 ± 11.1 | / |  |
ARCO stage (1 & 2/3/4) | 34/35/30 | / | Â |
Plasma CircCDR1as expressions | 1.93 ± 0.32 | 1.00 ± 0.16 | < 0.001 |
Local CircCDR1as expression in necrotic vs non-necrotic tissue | 2.20 ± 0.25 vs 1.00 ± 0.06 | / |  |