| BC | Breast Cancer |
| GP | General Practitioner |
| BCOS | Breast Cancer Outcomes Study |
| IRSD | Index of Relative Socioeconomic Disadvantage |
| ABS | Australian Bureau of Statistics |
| DI | Diagnostic Interval |
| PI | Patient-related Interval |
| SI | System-related Interval |
| LR | Likelihood Ratio Test |
| OR | Odds Ratios |
| CI | Confidence Intervals |
| USA | United States of America |
| HMO | Health Maintenance Organization |