MKI67 and diabetes mellitus: BMI (P = 0.147), menopausal status (P = 0.076), diabetes (P = 0.776), smoking (P = 0.977), histological grade (P = 0.998), T stage (P = 0.998) 0.184), N stage (P = 0.647), tumor stage (P = 0.760), HR status (P = 0.585), Ki-67 (P = 0.078), surgical method (P = 0.0.488), targeted therapy (P = 0.0.323), radiotherapy (P = 0.0.323) 0.0.550) had no significant correlation with cardiac toxicity, as shown in Table 2.