| RANKL | receptor activator of nuclear factor kappa B ligand |
| BMD | bone mineral density; PTH, parathyroid hormone |
| VitD | 25-hydroxy-vitamin D3 |
| NFkB | nuclear factor kappa-light-chain-enhancer of activated B cells |
| FN | femoral neck; SD, standard deviations |
| BMI | body mass index |
| HRT | hormonal replacement therapy |
| BPs | bisphosphonates |
| DXA | Dual X-ray Absorptiometry |
| LS | lumbar spine |
| F | total proximal femur |
| Ca | calcium |
| ALP | alkaline phosphatase |
| AI | aromatase inhibitors |
| BC | breast cancer |
| NoBC | without breast cancer |
| BPG | BPs previously treated group |
| NG | naive group |
| OCs | osteoclasts |