基于移動(dòng)百分位數(shù)法流感預(yù)警模型的探討
[Abstract]:Objective to establish an influenza early warning model based on moving percentile method and to explore the best early warning value. Methods using different percentile P as candidate early warning boundary value, the weekly case report number of influenza in a province from 2006 to 2009 was analyzed, and the best early warning threshold value was selected, and the early warning discriminant effect of the model was verified by influenza surveillance data in 2010. Results the best warning limit value of influenza outbreak was P85, the sensitivity was 94.12%, the specificity was 88.89%, and the area under ROC curve was 0.915 (95%CI:0.804~0.974). The empirical study showed that the sensitivity, specificity, positive predictive value and negative predictive value of the model were 73.68%, 93.94%, 87.50% and 86.11%, respectively, and the area under ROC curve was 0.838 (95%CI:0.710~0.925). Conclusion under the early warning threshold of P85, the model based on moving percentile method has better prediction and discrimination efficiency.
【作者單位】: 鄭州大學(xué)公共衛(wèi)生學(xué)院流行病與衛(wèi)生統(tǒng)計(jì)學(xué)系;河南省疾病預(yù)防控制中心傳染病所;
【基金】:國(guó)家自然科學(xué)基金資助項(xiàng)目(81001293) 鄭州大學(xué)全國(guó)大學(xué)生創(chuàng)新創(chuàng)業(yè)訓(xùn)練計(jì)劃項(xiàng)目(2011cxsy173)
【分類號(hào)】:R181.2
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