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Case number and percentage distribution of patients age and mammographic density rated by radiologists using BIRADS guidelines.
| Subgroup | Malignant Cases |
Benign Cases |
|
|---|---|---|---|
| Density BIRADS | 1 | 25 (3.9%) | 58 (6.9%) |
| 2 | 186 (28.8%) | 262 (31.1%) | |
| 3 | 401 (62.3%) | 502 (59.5%) | |
| p-value = 0.576 | 4 | 32 (5.0%) | 21 (2.5%) |
| Age of Patients (years old) | A < 40 | 11 (3.4%) | 71 (8.4%) |
| 40 ≤ A < 50 | 109(19.2%) | 158(18.7%) | |
| 50 ≤ A < 60 | 167(25.6%) | 285(33.8%) | |
| 60 ≤ A < 70 | 180(24.4%) | 192(22.8%) | |
| 70 ≤ A | 177(27.4%) | 137(16.3%) |
