• Clin J Am Soc Nephrol · Oct 2011

    Multicenter Study

    Prognosis of CKD patients receiving outpatient nephrology care in Italy.

    • Luca De Nicola, Paolo Chiodini, Carmine Zoccali, Silvio Borrelli, Bruno Cianciaruso, Biagio Di Iorio, Domenico Santoro, Vincenzo Giancaspro, Cataldo Abaterusso, Ciro Gallo, Giuseppe Conte, Roberto Minutolo, and SIN-TABLE CKD Study Group.
    • Nephrology Division, University of Naples, Naples, Italy. luca.denicola@unina2.it
    • Clin J Am Soc Nephrol. 2011 Oct 1; 6 (10): 2421-8.

    Background And ObjectivesPrognosis in nondialysis chronic kidney disease (CKD) patients under regular nephrology care is rarely investigated. Design, setting, participants, & measurements We prospectively followed from 2003 to death or June 2010 a cohort of 1248 patients with CKD stages 3 to 5 and previous nephrology care ≥1 year in 25 Italian outpatient nephrology clinics. Cumulative incidence of ESRD or death before ESRD were estimated using the competing-risk approach.ResultsEstimated rates (per 100 patient-years) of ESRD and death 8.3 (95% confidence interval [CI], 7.4 to 9.2) and 5.9 (95% CI 5.2 to 6.6), respectively. Risk of ESRD and death increased progressively from stages 3 to 5. ESRD was more frequent than death in stage 4 and 5 CKD, whereas the opposite was true in stage 3 CKD. Younger age, lower body mass index, proteinuria, and high phosphate predicted ESRD, whereas older age, diabetes, previous cardiovascular disease, ESRD, proteinuria, high uric acid, and anemia predicted death (P < 0.05 for all). Among modifiable risk factors, proteinuria accounted for the greatest contribution to the model fit for either outcome.ConclusionsIn patients receiving continuity of care in Italian nephrology clinics, ESRD was a more frequent outcome than death in stage 4 and 5 CKD, but the opposite was true in stage 3. Outcomes were predicted by modifiable risk factors specific to CKD. Proteinuria used in conjunction with estimated GFR refined risk stratification. These findings provide information, specific to CKD patients under regular outpatient nephrology care, for risk stratification that complement recent observations in the general population.

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