Abstract: Objective To retrospectively analyze the readmission causes in 71 maintenance hemodialysis (MHD) patients. Methods Seventy-one MHD patients readmitted to the hospital during the period from Jan. 2014 to Dec. 2015 were recruited. Their readmission causes were analyzed by comparison of clinical data with 65 MHD outpatients in the same period. Results The main readmission cause in the 71 MHD patients was infections (17 cases, 23.94%) followed by cardiovascular complications (15 cases, 21.13%) and poor blood pressure control (6 cases, 8.45%). There are statistically differences between the two patient groups in number of elders (χ²=4.980, P=0.026), BMI (t=2.915, P=0.004), Kt/V (t=3.953, P＜0.001), Hb (t=5.714, P＜0.001), serum albumin (t=4.008, P＜0.001), TG (t=3.821, P＜0.001), LDLC (t=2.968, P=0.004), infection (χ²=8.225, P=0.004), and cardiovascular complications (χ²=4.883, P=0.027). The risk factors for readmission were older age (OR=2.566, 95% CI 1.118～5.890, P=0.026), low Kt/V (OR=2.610, 95% CI 1.157～5.887, P=0.021), anemia (OR=2.409, 95% CI 1.054～5.507, P=0.037), and hypoalbuminemia (OR=2.634, 95% CI 1.177～5.893, P=0.018). Conclusion Improvement of nutritional status, anemia, dialysis adequacy, blood pressure and blood glucose control, and the management for elderly patients may be helpful to reduce the hospitalization rate in MHD patients.

Key words: Maintenance hemodialysis, Readmission, Risk factor