Characteristic | Hazard ratio | 95% CI | P-value |
---|---|---|---|
Category | Â | Â | Â |
 A | 1.00 | reference | 0.76 |
 A + B | 1.04 | 0.77 – 1.40 |  |
Age | Â | Â | Â |
 <50 | 1.00 | reference | 0.0008 |
 ≥50 | 1.61 | 1.23 – 2.20 |  |
AI | Â | Â | Â |
 No | 1.00 | reference | 0.0008 |
 Yes | 0.50 | 0.34 – 0.75 |  |
Zoledronic acid | Â | Â | Â |
 No | 1.00 | reference | 0.005 |
 Yes | 0.45 | 0.26 – 0.79 |  |