Table 2: Findings in US.
| Group 1(control) | Group 2 (Mastalgia) | p | |||
| Normal | 298 | 50.8 | 271 | 45.0 | 0.137 |
| Cyst | 138 | 23.5 | 162 | 26.9 | |
| Complicated cyst | 12 | 2.0 | 17 | 2.8 | |
| Fibroadenoma | 29 | 4.9 | 16 | 2.7 | |
| Solid mass | 11 | 1.9 | 23 | 3.8 | |
| Duct ectasia | 28 | 4.8 | 30 | 5.0 | |
| Accessory breast tissue | 12 | 2.0 | 12 | 2.0 | |
| Lipoma | 2 | 0.3 | 8 | 1.3 | |
| Intra-mammarian lymph node | 5 | 0.9 | 4 | 0.7 | |
| Benign axillar lymph node | 6 | 1.0 | 3 | 0.5 | |
| Epidermal Cyst | 11 | 1.9 | 6 | 1.0 | |
| Cyst and fibroadenoma | 17 | 2.9 | 24 | 4.0 | |
| Malignancy | 5 | 0.9 | 5 | 0.8 | |
| Atypic fat lobule | 1 | 0.2 | 2 | 0.3 | |
| Intraductal papilloma | 0 | 0.0 | 1 | 0.2 | |
| Others | 12 | 2.0 | 18 | 2.9 | |