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Age group distribution among BI-RADS 4 subgroups and its outcome
| Age group | BI-RADS 4a/malignant | BI-RADS 4b/malignant | BI-RADS 4c/malignant | Total/malignant |
|---|---|---|---|---|
| < 40 years | 24/0 | 34/30 | 16/16 | 74/46 |
| 41–50 | 32/12 | 42/40 | 16/16 | 90/68 |
| 51–60 | 12/10 | 26/20 | 20/20 | 58/50 |
| 61–70 | 4/2 | 6/6 | 8/8 | 18/16 |
| > 70 | 0/0 | 2/2 | 4/2 | 6/4 |
| Total | 72/24 | 110/98 | 64/62 | 246/184 |
