Conclusion Patients with nephritic syndrome, lupus nephritis and chronic glomerulonephritis are apt to develop NI, which is related to long hospitalization.

• 结论肾病综合征、狼疮性肾炎和慢性肾炎是较易发生医院感染的肾脏疾病，应重点监控。住院时间长是医院感染率增高原因之一。