From: 1Department of Nephrology, Saitama Medical School,

At the beginning of continuous ambulatory peritoneal dialysis (CAPD), different patients exhibit large dif-ferences in peritoneal permeability. To determine if early estimation of peritoneal permeability can pre-dict the prognosis of CAPD, we used data from a per-sonal dialysis capacity (PDC) study group in Japan to investigate patient and technique survival rates. Based on the data from a previously reported, pro-spective multicenter study encompassing eight dialy-sis centers in Japan (Am J Kidney Dis 2002; 40:1045–54), we recalculated patient and technique survival data. We reviewed the records of 139 patients newly initiated on CAPD from January 1995 to De-cember 1999. Peritoneal permeability was estimated by PDC test within the first year after initiation. W