Inclusion Criteria:  Patients who were at least 18 years old. Patients who were diagnosed with stage 5 chronic kidney disease (eGFR < 15 ml/min/1.73m^2). Patients who were undergoing Continuous Ambulatory Peritoneal Dialysis (CAPD) at CAPD clinic, Phramongkutklao Hospital during January 1, 2016 to December 31, 2020.  Exclusion Criteria:  Patients with incomplete data records that invalid to include in the process of data analysis Patients who were not treated and started their first CAPD at CAPD clinic, Phramongkutklao Hospital.