OBJECTIVE To investigate the risk factors of maintenance hemodialysis patients complicated with pulmonary infections,so as to offer certain reference basis for prevention and control.METHODS A total of 100 patients received maintenance hemodialysis treatment in laminar airflow room longer than 6months from Jan.2007 to Dec.2011were selected in our hospital.According to the patients with pulmonary infections,they were divided into the infection group(40cases)and non-infection group(60cases),the bacteriologica...