Multiple factor analysis in this study showed the measurement of MDE(Multidrug Resistance) had an important values for choice of anticancer drugs and estimation of the prognosis of patients.

• 同时发现MDR阳性者复发率高，MDR阴性者复发率低，多因素分析表明MDER对初诊白血病患者预后及抗癌药物选择有重要意义。