ERBB2 and neoplasm: However, no obvious correlation was found with tumour size (≤ 5 cm vs > 5 cm: OR 1.35, 95% CI 0.83–2.18), tumour TNM stages (T3 & T4 vs T1 & T2: OR 1.21, 95% CI 0.76–1.92), lymphovascular invasion (LVI) (positive vs negative: OR 1.11, 95% CI 0.84–1.46), and HER-2 status (positive vs negative OR 2.51, 95% CI 0.84–7.51).