A new approach to classify risk in dengue infection using bioelectrical impedance analysis

Ibrahim, F. and Wan Abas, W.A.B. and Taib, M.N. and Guan, C.C. and Sulaiman, S. (2007) A new approach to classify risk in dengue infection using bioelectrical impedance analysis. Dengue Bulletin, 31. pp. 58-74. ISSN 1020895X,

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Abstract

The study on risk classification was conducted on 183 hospitalized dengue patients (4 DF, 179 DHF). The severity of the risk criteria was determined based on three blood investigations, namely, platelet (PLT) count (less than or equal to 30 000 cells per mm 3), haematocrit (HCT) (increase by more than or equal to 20), and either aspartate aminotransferase (AST) level (raised by 5-fold the normal upper limit) or alanine aminotransferase (ALT) level (raised by 5-fold the normal upper limit). The patients were divided into three groups based on their risk factors and the corresponding bioelectrical impedance analysis (BIA) (i.e. bioelectrical tissue conductivity (BETC) parameters), namely, resistance (R), phase angle (α), body capacitance (BC) and capacitive reactance (X c) were obtained and quantified. Using logistic regression analysis, X c was found to be the best predictor in predicting the risk and severity in dengue patients. Subsequent two-way analysis of variance (ANOVA) found that there was a statistically significant relationship between the group categories and the change in X c. Hence, it was shown that BIA, as reflected by the X c value, can effectively segregate between the lower-risk (female mean X c = 60.70Ω, range 58.09Ω-63.43Ω; male mean X c = 62.17Ω, range 59.92Ω-64.46Ω) and the higher-risk dengue patients (female mean X c = 43.99Ω, range 42.05Ω-45.97Ω; male mean X c = 50.65Ω range 49.25Ω-52.09Ω, with the control data ((female mean X c =69.41Ω, range 67.09Ω-71.74Ω, and (male mean X c =64.19Ω, range 61.37Ω-67.15Ω.

Item Type:	Article
Funders:	UNSPECIFIED
Additional Information:	Export Date: 29 January 2014 Source: Scopus CODEN: DBEUA Language of Original Document: English Correspondence Address: Ibrahim, F.; Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia; email: fatimah@um.edu.my Chemicals/CAS: alanine aminotransferase, 9000-86-6, 9014-30-6; aspartate aminotransferase, 9000-97-9 References: Skae, F.M., Dengue fever in Penang (1902) Br Med J, 2, pp. 1581-1582; Gordon SCE. Dengue: An introduction. In: Rudnick A, Lim TW, Editors. Dengue fever studies in Malaysia Institute for Medical Research. Malaysia Bulletin. 1986; 23:1-5World Health Organization. Annual Report (1998) of the WHO Collaborating Centre for Arbovirus Reference and Research (dengue and dengue haemorrhagic fever) by Department of Medical Microbiology, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur; 1998World Health Organization. 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Uncontrolled Keywords:	Bioelectrical impedance, Classify, Dengue infections, Reactance, Risk, alanine aminotransferase, aspartate aminotransferase, adolescent, adult, aged, alanine aminotransferase blood level, article, aspartate aminotransferase blood level, biolelectrical impedance analysis, blood vessel permeability, clinical protocol, controlled study, dengue, diagnostic test, disease classification, disease severity, female, hematocrit, human, major clinical study, male, membrane conductance, process design, process development, process technology, risk assessment, school child, serology, thrombocyte count
Subjects:	T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General)
Divisions:	Faculty of Engineering
Depositing User:	Mr Jenal S
Date Deposited:	07 Apr 2014 02:50
Last Modified:	09 Aug 2018 09:05
URI:	http://eprints.um.edu.my/id/eprint/9316

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