Controlling Nutritional Status (CONUT) score as immune-nutritional predictor of outcomes in patients undergoing peritoneal dialysis
2019
Summary Background & aims The Controlling Nutritional Status (CONUT) score was designed to assess the immune-nutritional status in patients. The aim of this study was to investigate the prognostic value of the CONUT score at the commencement of peritoneal dialysis (PD) for all-cause mortality, cardiovascular disease (CVD), and technique failure. Methods This is a STROBE-compliant, retrospective, observational, single center study. A total of 252 patients with end stage renal disease initially undergoing PD were enrolled in the study. Baseline data were collected from The Third Affiliated Hospital of Soochow University Peritoneal Dialysis database. The primary outcome during follow-up was all-cause mortality. The secondary outcomes were CVD and technique failure. Univariate and multivariate Cox regression analyses were performed to estimate the association between confounding factors and outcomes. The area under the curve represented the test discriminative power of CONUT score and relevant clinical parameters. The Kaplan–Meier curve was used to compare the outcomes of the patients according to the cut-off CONUT score. Results During a median follow-up period of 1.9 years, 35 patients (13.9%) died, 38 (15.1%) experienced CVD events, 58 (23.0%) experienced technique failure. The high CONUT group (CONUT score > 3) had significantly higher all-cause mortality (p = 0.02), CVD prevalence (p Conclusion The CONUT score is a straightforward and inexpensive indicator to evaluate the immune-nutritional status; it could be a reliable prognostic marker of all-cause mortality, CVD, and technique failure risk in patients undergoing PD.
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