Improving the performance of outbreak detection algorithms by classifying the levels of disease incidence.

We evaluated a novel strategy to improve the performance of outbreak detection algorithms, namely setting the alerting threshold separately in each region according to the disease incidence in that region. By using data on hand, foot and mouth disease in Shandong province, China, we evaluated the im...

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Main Authors: Honglong Zhang, Shengjie Lai, Liping Wang, Dan Zhao, Dinglun Zhou, Yajia Lan, David L Buckeridge, Zhongjie Li, Weizhong Yang
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2013-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC3747136?pdf=render
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author Honglong Zhang
Shengjie Lai
Liping Wang
Dan Zhao
Dinglun Zhou
Yajia Lan
David L Buckeridge
Zhongjie Li
Weizhong Yang
author_facet Honglong Zhang
Shengjie Lai
Liping Wang
Dan Zhao
Dinglun Zhou
Yajia Lan
David L Buckeridge
Zhongjie Li
Weizhong Yang
author_sort Honglong Zhang
collection DOAJ
description We evaluated a novel strategy to improve the performance of outbreak detection algorithms, namely setting the alerting threshold separately in each region according to the disease incidence in that region. By using data on hand, foot and mouth disease in Shandong province, China, we evaluated the impact of disease incidence on the performance of outbreak detection algorithms (EARS-C1, C2 and C3). Compared to applying the same algorithm and threshold to the whole region, setting the optimal threshold in each region according to the level of disease incidence (i.e., high, middle, and low) enhanced sensitivity (C1: from 94.4% to 99.1%, C2: from 93.5% to 95.4%, C3: from 91.7% to 95.4%) and reduced the number of alert signals (the percentage of reduction is C1∶4.3%, C2∶11.9%, C3∶10.3%). Our findings illustrate a general method for improving the accuracy of detection algorithms that is potentially applicable broadly to other diseases and regions.
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spelling doaj.art-aac96fd20a57444db4837fdd8e1b78192022-12-22T01:29:41ZengPublic Library of Science (PLoS)PLoS ONE1932-62032013-01-0188e7180310.1371/journal.pone.0071803Improving the performance of outbreak detection algorithms by classifying the levels of disease incidence.Honglong ZhangShengjie LaiLiping WangDan ZhaoDinglun ZhouYajia LanDavid L BuckeridgeZhongjie LiWeizhong YangWe evaluated a novel strategy to improve the performance of outbreak detection algorithms, namely setting the alerting threshold separately in each region according to the disease incidence in that region. By using data on hand, foot and mouth disease in Shandong province, China, we evaluated the impact of disease incidence on the performance of outbreak detection algorithms (EARS-C1, C2 and C3). Compared to applying the same algorithm and threshold to the whole region, setting the optimal threshold in each region according to the level of disease incidence (i.e., high, middle, and low) enhanced sensitivity (C1: from 94.4% to 99.1%, C2: from 93.5% to 95.4%, C3: from 91.7% to 95.4%) and reduced the number of alert signals (the percentage of reduction is C1∶4.3%, C2∶11.9%, C3∶10.3%). Our findings illustrate a general method for improving the accuracy of detection algorithms that is potentially applicable broadly to other diseases and regions.http://europepmc.org/articles/PMC3747136?pdf=render
spellingShingle Honglong Zhang
Shengjie Lai
Liping Wang
Dan Zhao
Dinglun Zhou
Yajia Lan
David L Buckeridge
Zhongjie Li
Weizhong Yang
Improving the performance of outbreak detection algorithms by classifying the levels of disease incidence.
PLoS ONE
title Improving the performance of outbreak detection algorithms by classifying the levels of disease incidence.
title_full Improving the performance of outbreak detection algorithms by classifying the levels of disease incidence.
title_fullStr Improving the performance of outbreak detection algorithms by classifying the levels of disease incidence.
title_full_unstemmed Improving the performance of outbreak detection algorithms by classifying the levels of disease incidence.
title_short Improving the performance of outbreak detection algorithms by classifying the levels of disease incidence.
title_sort improving the performance of outbreak detection algorithms by classifying the levels of disease incidence
url http://europepmc.org/articles/PMC3747136?pdf=render
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