For subtypes of breast cancer, we did not observe any causality between general alcohol consumption (drinks per week) and the incidence risk for HER2-Enriched-like and triple-negative breast cancer in BCAC, the OR was 1.46 (95% CI 0.92, 2.33) and 0.97 (95% CI 0.72, 1.30), respectively. Here, ERBB2 is linked to breast carcinoma.