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Data Mining Analysis of Relationship between Blood Stream Infection and Clinical Background in Patients Undergoing Lactobacillus Therapy

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4 Author(s)
Matsuoka, K. ; Osaka Prefectural Gen. Med. Center, Osaka ; Yokoyama, S. ; Watanabe, Kunitomo ; Tsumoto, S.

In this paper, we applied data mining for extracting certain patterns from our hospital clinical microbiology database. The aim of this study is to analyze the effects of Lactobacillus therapy and the background risk factors on blood stream infection in patients by using data mining. The data was analyzed by data mining software, i.e. "ICONS Miner" (Koden Industry Co., Ltd.). The significant "If-then rules" were extracted from the decision tree between bacteria detection on blood samples and patients' treatments, such as lactobacillus therapy, anti-biotics, various catheters, etc. The chi-square test, odds ratio and logistic regression were applied in order to analyze the effect of lactobacillus therapy to bacteria detection. From odds ratio of lactobacillus absence to lactobacillus presence, bacteria detection risk of lactobacillus absence was about 2 (95%CI: 1.57-2.99). The significant "If-then rules", chi-square test, odds ratio and logistic regression showed that lactobacillus therapy might be the significant factor for prevention of blood stream infection. Our study suggests that lactobacillus therapy may be effective in reducing the risk of blood stream infection. Data mining is useful for extracting background risk factors of blood stream infection from our clinical database.

Published in:

Complex Medical Engineering, 2007. CME 2007. IEEE/ICME International Conference on

Date of Conference:

23-27 May 2007