Document Detail

The prediction of cardiovascular disease based on trace element contents in hair and a classifier of boosting decision stumps.
MedLine Citation:
PMID:  19066736     Owner:  NLM     Status:  MEDLINE    
The early discovery of cardiovascular disease (CVD) is crucial for performing successful treatments. This study aims at exploring the feasibility of Adaboost (ensemble from machining learning) using decision stumps as weak classifier, combined with trace element analysis of hair, for accurately predicting early CVD. A total of 124 hair samples composed of two groups of samples (one is healthy group from 100 healthy persons aged 24-72 while the other is patient group from 24 cardiovascular disease patients aged 36-81) were used. Nine kinds of trace elements, i.e., chromium (Cr), manganese (Mn), cadmium (Cd), copper (Cu), zinc (Zn), selenium (Se), iron (Fe), aluminum (Al), and nickel (Ni), were selected. In a preliminary analysis, no obvious linear correlations between elements can be observed and the concentration of Cr, Fe, Al, Cd, Ni, or Se for healthy group is higher than that for patient group while the opposite is true for Mn, Cu, or Zn, indicating that both low Se/Fe and high Mn/Cu can be identified as major risk factors. Based on the proposed approach, the final ensemble classifier, constructed on the training set and contained only four decision stumps, achieved an overall identification accuracy of 95.2%, a sensitivity of 100% and a specificity of 94% on the independent test set. The results suggested that integrating Adaboost and trace element analysis of hair sample can serve as a useful tool of diagnosing CVD in clinical practice.
Chao Tan; Hui Chen; Chengyun Xia
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-12-09
Journal Detail:
Title:  Biological trace element research     Volume:  129     ISSN:  1559-0720     ISO Abbreviation:  Biol Trace Elem Res     Publication Date:  2009  
Date Detail:
Created Date:  2009-05-22     Completed Date:  2009-07-16     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7911509     Medline TA:  Biol Trace Elem Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  9-19     Citation Subset:  IM    
Department of Chemistry and Chemical Engineering, Yibin University, Yibin, People's Republic of China.
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MeSH Terms
Aged, 80 and over
Artificial Intelligence
Cardiovascular Diseases / diagnosis*
Case-Control Studies
Databases, Factual
Decision Support Techniques*
Hair / chemistry*
Middle Aged
Predictive Value of Tests
Reproducibility of Results
Sensitivity and Specificity
Trace Elements / analysis*
Reg. No./Substance:
0/Trace Elements

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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