For DRFI, the 5-year figure for HER2-low and HER2 0 BC was 5.8% (95% CI: 5.5; 6.1) and 6.6% (95% CI: 6.2; 7.1), respectively, and the 10-year figure 10.1% (95% CI: 9.5; 10.6) and 10.5% (95% CI: 9.8; 11.3), respectively. The gene discussed is ERBB2; the disease is breast cancer.