- The average mean number of nucleolar organizer region/cell among different types of breast lesions.
| Average mean number of NOR/cell | Fibroadenoma | Fibrocystic breast changes | Invasive ductal carcinoma | Total |
|---|---|---|---|---|
| ≤2.0 NOR/cell | 12 (40.0) | 11 (36.7) | 7 (23.3) | 30 (100) |
| 2.1-3.0 NOR/cell | 20 (36.4) | 5 (9.1) | 30 (54.5) | 55 (100) |
| 3.1-6.6 NOR/cell | 1 (4.0) | 1 (4.0) | 23 (92.0) | 25 (100) |
| Total | 33 (29.1) | 17 (14.5) | 60 (56.4) | 110 (100) |
Values are presented as numbers and percentages (%). Pearson’s Chi-square (p<0.005). NOR: nucleolar organizer region