showed a trendp = 0.06
Patients with tumors with high HER2/CEP17 ratio levels showed a trend toward worse prognosis as compared to those with intermediate levels (HR = 1.8, CI 1.0–3.2, p = 0.06) and patients with tumors with low levels of HER2/CEP17 ratio had a significantly worse prognosis than those with intermediate levels (HR = 4.8, CI 1.9–12.1, p = 0.0009), (Fig. 3 C, D).