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Prognostic nutritional index is correlated with disease activity in patients with systemic lupus erythematosus

Authors
 S S Ahn  ;  S M Jung  ;  J J Song  ;  Y-B Park  ;  S-W Lee 
Citation
 Lupus, Vol.27(10) : 1697-1705, 2018 
Journal Title
 Lupus 
ISSN
 0961-2033 
Issue Date
2018
Keywords
Prognostic nutritional index ; disease activity ; inflammation ; systemic lupus erythematosus
Abstract
The prognostic nutritional index (PNI), which is calculated using serum albumin level and total lymphocyte count in the peripheral blood, is regarded as an index that reflects the immunonutritional status of patients. PNI was calculated in 217 systemic lupus erythematosus (SLE) patients according to the following formula: 10 × serum albumin value (g/dL) + 0.005 × peripheral lymphocyte count (/mm3). Pearson's correlation analysis was used to elucidate the correlation between continuous variables. Linear and logistic regression analyses were performed to assess the correlation between laboratory variables and SLE Disease Activity Index-2000 (SLEDAI-2 K) and to differentiate between active and inactive SLE. Ninety-three patients were classified as active SLE (SLEDAI-2 K ≥ 5) and 124 as inactive SLE. Patients with active SLE exhibited lower median PNI than those with inactive SLE (39.0 vs. 49.1, p < 0.001). Multivariable logistic regression analysis revealed PNI as an independent predictor of active SLE. Multivariable linear regression analysis revealed that PNI was significantly correlated with laboratory variables of SLEDAI-2 K, erythrocyte sedimentation rate, C-reactive protein and SLEDAI-2 K. Furthermore, in patients who switched from active to inactive SLE after treatment ( n = 55), PNI increased as disease activity improved ( p < 0.001), which suggests that PNI may be useful for estimating SLE activity.
Full Text
http://journals.sagepub.com/doi/abs/10.1177/0961203318787058
DOI
10.1177/0961203318787058
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
박용범(Park, Yong Beom)
송정식(Song, Jungsik Jason) ORCID logo https://orcid.org/0000-0003-0662-7704
안성수(Ahn, Sung Soo) ORCID logo https://orcid.org/0000-0002-9002-9880
이상원(Lee, Sang Won) ORCID logo https://orcid.org/0000-0002-8038-3341
정승민(Jung, Seung Min ) ORCID logo https://orcid.org/0000-0003-3465-2181
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URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/163198
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