Controlling Nutritional Status Score is Associated with All-Cause Mortality in Patients with Antineutrophil Cytoplasmic Antibody-Associated Vasculitis
10.3349/ymj.2019.60.12.1164
- Author:
Sung Soo AHN
1
;
Seung Min JUNG
;
Jason Jungsik SONG
;
Yong Beom PARK
;
Sang Won LEE
Author Information
1. Division of Rheumatology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea. sangwonlee@yuhs.ac
- Publication Type:Original Article
- Keywords:
ANCA-associated vasculitis;
CONUT score;
all-cause mortality;
predictor
- MeSH:
Anti-Neutrophil Cytoplasmic Antibody-Associated Vasculitis;
Antibodies, Antineutrophil Cytoplasmic;
Cholesterol;
Creatinine;
Cytoplasm;
Diabetes Mellitus;
Diagnosis;
Humans;
Kidney Failure, Chronic;
Lymphocytes;
Malnutrition;
Mortality;
Nutritional Status;
Recurrence;
Retrospective Studies;
Serum Albumin;
Survival Rate;
Vasculitis
- From:Yonsei Medical Journal
2019;60(12):1164-1173
- CountryRepublic of Korea
- Language:English
-
Abstract:
PURPOSE: The controlling nutritional status (CONUT) score was developed to detect undernutrition in patients. Here, we investigated whether the CONUT score estimated at diagnosis could help predict poor outcomes [all-cause mortality, relapse, and end-stage renal disease (ESRD)] of antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV). MATERIALS AND METHODS: We retrospectively reviewed and collated data, including baseline characteristics, clinical manifestations (to calculate AAV-specific indices), and laboratory results, from 196 newly diagnosed AAV patients. Serum albumin, peripheral lymphocyte, and total cholesterol levels (at diagnosis) were used to calculate CONUT scores. RESULTS: In total, 111 patients had high CONUT scores (≥3), which showed higher frequency of myeloperoxidase-ANCA and ANCA positivity, and demonstrated higher AAV-specific indices. The optimal cut-offs of CONUT score (at diagnosis) for predicting all-cause mortality and ESRD were ≥3.5 and ≥2.5, respectively. Patients with CONUT scores higher than the cut-off at diagnosis exhibited lower cumulative and ESRD-free survival rates compared to those with lower scores than the cut-off. In multivariable analyses, diabetes mellitus [hazard ratio (HR): 4.394], five-factor score (HR: 3.051), and CONUT score ≥3.5 (HR: 4.307) at diagnosis were independent predictors of all-cause mortality, while only serum creatinine (HR: 1.714) was an independent predictor of ESRD occurrence. CONCLUSION: CONUT score at diagnosis is associated with all-cause mortality in AAV patients.
