ABSTRACT
Objective To explore the risk factors of postoperative delirium among ICU patients. Methods Meta analysis was done by retrieving POD-relevant literature through electronic databases.The included papers by quality assessment were analyzed by Revman 5.3. Results 14 papers,10 English and 4 Chinese,were included for the analysis,involving 5,661 patients.Meta-analysis showed that the alcoholism, renal function impairment, mechanical ventilation, stroke, hypertension and diabetes, LVEF<50% and emergency operation were the risk factors of postoperative delirium(all P<0.05). Conclusions The risk factors of postoperative POD in ICU patients include alcoholism,renal function impairment,mechanical ventilation,stroke,hypertension and diabetes,LVEF<50% and emergency operation. Medical staffs should pay more attentions to the intervention into those risk factors in order to reduce the incidence rate of POD and improve the quality of clinic treatment.