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The AIs and PIs per histological breast lesion
| Tissue type | n | AI (%) | PI (%) |
| Normal epithelium | 32 | 0.00 (0.00-0.40) | 0.10 (0.0-3.0) |
| Hyperplasia | 43 | 0.02 (0.00-0.50) | 1.22 (0.0-5.5) |
| Atypical hyperplasia | 17 | 0.16 (0.08-0.84) | 2.02 (1.8-9.3) |
| Carcinoma in situ | 25 | 0.52 (0.13-2.06) | 6.65 (1.3-24.0) |
| Carcinoma invasive | 50 | 1.17 (0.16-3.69) | 17.00 (1.0-50.0) |
| Total | 167 | 0.21 (0.00-3.69) | 2.26 (0.0-50.0) |
Values are expressed as median (range).
