GSTM1 and coronary artery disorder: Then, the significant variables in the LASSO regression analysis were included in the multivariate logistic regression analysis, and the results showed that longer operation time, simultaneous bilateral THA, greater blood loss, comorbid coronary heart disease, lower preoperative Hb, lower preoperative PLT, and lower weight were independent risk factors for transfusion after THA in nonfracture patients.