Factors that were analyzed but were not found to associate with any component of dyslipidaemias on multivariate analysis include: education level; employment and family income statuses; history of smoking and excessive alcohol intake; having child birth before breast cancer diagnosis; family history of first degree relative with breast cancer; breast ER/PR and HER2 status; having received adjuvant radiotherapy, corticosteroid or adjuvant trastuzumab; longer duration of adjuvant chemotherapy; having experienced CRA; and use of traditional Chinese medicine. The gene discussed is ESR1; the disease is breast cancer.