Department of Urology The First Affiliated Hospital of Chongqing Medical University Chongqing 400016 China;
Department of Medical Insurance The First Affiliated Hospital of Chongqing Medical University Chongqing 400016 China;
Department of Nursing The First Affiliated Hospital of Chongqing Medical University Chongqing 400016 China;
Department of Nursing The First Affiliated Hospital of Chongqing Medical University Chongqing 400016 China;
Department of Urology The First Affiliated Hospital of Chongqing Medical University Chongqing 400016 China;
Department of Urology The First Affiliated Hospital of Chongqing Medical University Chongqing 400016 China;
Falls; Elderly; Hospitalization costs; Quantile regression model; Decision tree model; Prevention;