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Table 1 Number of affected families due to reclassified variants

From: How does re-classification of variants of unknown significance (VUS) impact the management of patients at risk for hereditary breast cancer?

Re-classification

Involved variants

Involved probands

Increased risk (VUS → Pathogenic/Likely pathogenic)

13 (5.5%)

31 (6.8%)

Downgrade of risk (VUS → Likely Benign)

8 (3.4%)

69 (15.0%)

Back to potential risk (Likely Benign → VUS)

5 (2.1%)

46 (10.0%)

Remain no change (VUS → VUS)

210 (89.0%)

313 (68.2%)