In the present survey our experience on the first 100 patients on CAPD, treated from the start in 1982 till September 1991, is described. Sixteen were diabetics. Both the absolute numbers and the proportion of the total dialysis population have increased almost every year. Mean age did not change over the years due to an equilibrium between younger patients who received a transplant and elderly who stopped CAPD for other reasons. Patient survival at 3 years was 68%. Seventy patients stopped CAPD, of whom 25 died and 16 switched to haemodialysis. Twenty-four patients received a transplant, patient and transplant survival at 3 years being 89% and 77% respectively. Fifteen patients have had a follow-up period of 3 years or more, the longest being 123 months currently. Seventy-three CAPD-related complications occurred, the majority catheter-related. After the introduction of a 'break-in' period a significant reduction in leakage alongside the catheter was observed. In recent years there was a dramatic decrease in the incidence of CAPD-related peritonitis, from once every 8 to once every 30 months, which could be attributed mainly to the introduction of a new disconnect system in our centre, the so-called 'Twinbag'.