Derivation and Validation of a Mortality Risk Score for Severe Hand, Foot and Mouth Disease in China

Abstract Outbreaks of hand, foot and mouth disease (HFMD) have increased recently, as has the case fatality rate in severe cases. No scoring system currently exists to predict mortality risk for severe HFMD in previous study. We retrospectively collected laboratory parameters for 546 patients with s...

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Main Authors: Jun Qiu, Xiulan Lu, Xiao Liu, Ping Zang, Wenjiao Zhao, Pingping Liu, Zhenghui Xiao
Format: Article
Language:English
Published: Nature Portfolio 2017-06-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-017-02658-4
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author Jun Qiu
Xiulan Lu
Xiao Liu
Ping Zang
Wenjiao Zhao
Pingping Liu
Zhenghui Xiao
author_facet Jun Qiu
Xiulan Lu
Xiao Liu
Ping Zang
Wenjiao Zhao
Pingping Liu
Zhenghui Xiao
author_sort Jun Qiu
collection DOAJ
description Abstract Outbreaks of hand, foot and mouth disease (HFMD) have increased recently, as has the case fatality rate in severe cases. No scoring system currently exists to predict mortality risk for severe HFMD in previous study. We retrospectively collected laboratory parameters for 546 patients with severe HFMD (a derivation and a validation cohort) at Hunan Children’s Hospitals between January 2012 and December 2014. We developed a mortality risk score comprising four laboratory parameters: blood glucose (GLU), white blood cells (WBC), lactate (LAC), and N-terminal-probrain natriuretic peptide (NT-proBNP). Using an “optimal” cutoff score of 4, the sensitivity, specificity, positive predictive value and negative predictive value was 88.00%, 96.14%, 62.86% and 99.08%, respectively, in the derivation cohort. Among severe HFMD patients with low- and high-risk scores in the validation cohort, case fatality rates were 1.49% and 74.07%, respectively. According to the “optimal” cut-off in the derivation cohort, the sensitivity, specificity, positive predictive value, and negative predictive value were 80.95%, 93.83%, 62.96% and 97.44%, respectively, in the derivation cohort. The mortality risk score demonstrated good discrimination (AUC > 0.9) and calibration (P > 0.05) in both cohorts. The mortality risk score, comprising WBC, GLU, LAC and NT-proBNP, has been demonstrated good discrimination and calibration in the both cohorts.
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spelling doaj.art-5ad1c5521189462bbd3dfae1db6961bb2022-12-21T21:51:45ZengNature PortfolioScientific Reports2045-23222017-06-01711910.1038/s41598-017-02658-4Derivation and Validation of a Mortality Risk Score for Severe Hand, Foot and Mouth Disease in ChinaJun Qiu0Xiulan Lu1Xiao Liu2Ping Zang3Wenjiao Zhao4Pingping Liu5Zhenghui Xiao6Emergency Center, Hunan Children’s HospitalEmergency Center, Hunan Children’s HospitalEmergency Center, Hunan Children’s HospitalEmergency Center, Hunan Children’s HospitalEmergency Center, Hunan Children’s HospitalEmergency Center, Hunan Children’s HospitalEmergency Center, Hunan Children’s HospitalAbstract Outbreaks of hand, foot and mouth disease (HFMD) have increased recently, as has the case fatality rate in severe cases. No scoring system currently exists to predict mortality risk for severe HFMD in previous study. We retrospectively collected laboratory parameters for 546 patients with severe HFMD (a derivation and a validation cohort) at Hunan Children’s Hospitals between January 2012 and December 2014. We developed a mortality risk score comprising four laboratory parameters: blood glucose (GLU), white blood cells (WBC), lactate (LAC), and N-terminal-probrain natriuretic peptide (NT-proBNP). Using an “optimal” cutoff score of 4, the sensitivity, specificity, positive predictive value and negative predictive value was 88.00%, 96.14%, 62.86% and 99.08%, respectively, in the derivation cohort. Among severe HFMD patients with low- and high-risk scores in the validation cohort, case fatality rates were 1.49% and 74.07%, respectively. According to the “optimal” cut-off in the derivation cohort, the sensitivity, specificity, positive predictive value, and negative predictive value were 80.95%, 93.83%, 62.96% and 97.44%, respectively, in the derivation cohort. The mortality risk score demonstrated good discrimination (AUC > 0.9) and calibration (P > 0.05) in both cohorts. The mortality risk score, comprising WBC, GLU, LAC and NT-proBNP, has been demonstrated good discrimination and calibration in the both cohorts.https://doi.org/10.1038/s41598-017-02658-4
spellingShingle Jun Qiu
Xiulan Lu
Xiao Liu
Ping Zang
Wenjiao Zhao
Pingping Liu
Zhenghui Xiao
Derivation and Validation of a Mortality Risk Score for Severe Hand, Foot and Mouth Disease in China
Scientific Reports
title Derivation and Validation of a Mortality Risk Score for Severe Hand, Foot and Mouth Disease in China
title_full Derivation and Validation of a Mortality Risk Score for Severe Hand, Foot and Mouth Disease in China
title_fullStr Derivation and Validation of a Mortality Risk Score for Severe Hand, Foot and Mouth Disease in China
title_full_unstemmed Derivation and Validation of a Mortality Risk Score for Severe Hand, Foot and Mouth Disease in China
title_short Derivation and Validation of a Mortality Risk Score for Severe Hand, Foot and Mouth Disease in China
title_sort derivation and validation of a mortality risk score for severe hand foot and mouth disease in china
url https://doi.org/10.1038/s41598-017-02658-4
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