Objective: Few studies have focused on patients actually attending renal units for their follow-up over time. This study reports the type of prevalent patients (case-mix) with a renal condition being followed up by 19 renal units in the Nordic countries during 1998-99.
Material And Methods: In a joint quality of care development project between the renal societies of the five Nordic countries and the unit for Quality of Health Systems, WHO (Europe), 19 renal units collected data on a random sample of their prevalent patients.