目的　为了解恶性肿瘤死亡患者医院感染的危险因素。方法　 1998年 1月～ 1999年 6月恶性肿瘤死亡病例进行医院感染回顾性调查。结果　 116例死亡病例发生医院感染 5 2人 ,感染率为 44 .8% ;其中发生多次感染者占 34.6 % ;感染因直接和间接原因加速死亡者 2 3人 ,占 44 .2 %。结论　医院感染的发生与原发癌、住院时间、感染部位、感染例次有关 ,直接和间接地加速患者死亡 Objective To understand the risk factors for nosocomial infections in patients with death from malignancies. Methods A retrospective survey of nosocomial infections in patients with death from malignant tumor from January 1998 to June 1999 was conducted. Results Among the 116 deaths, 52 were hospitalized and the infection rate was 44.8%. Among them, 34.6% were infected with multiple infections and 23 were accelerated due to direct and indirect causes, accounting for 44.2%. Conclusion The occurrence of nosocomial infection is related to primary cancer, length of hospital stay, site of infection and infection, which directly and indirectly accelerate the death of patients