Comprehensive evaluation of the epidemic warning and monitoring system for infectious disease aggregation in schools or daycare institutions with multi-source data
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摘要:
目的 通过对多源数据的学校和托幼机构传染病聚集性疫情预警监测系统(WMS)的综合评价, 为优化其预警功能和探索进一步整合其他数据来源提供依据。 方法 收集2021年1月年至2023年7月期间国家传染病自动预警系统(ARS)、广东省佛山市学生健康监护系统(SHMS)和WMS产生的传染病预警数据, 采用灵敏度、特异度、约登指数、阳性预测值、预警及时性中位数等指标对预警监测系统进行综合评价。 结果 ARS对于学校或托幼机构的常见传染病预警不敏感, SHMS和WMS的预警及时性中位数均为1 d。SHMS和WMS对手足口病、感染性腹泻、流感样病例、水痘等传染病的预警灵敏度均在70%以上, 但对新型冠状病毒感染的灵敏度分别只有10.42%和64.58%。WMS的约登指数和阳性预测值均最高。 结论 WMS能及时、有效地对学校和托幼机构聚集性疫情进行预警, 提高了阳性预测值。未来需不断增加数据来源以提高预警能力。 Abstract:Objective To comprehensively evaluate the early warning monitoring system (WMS) for infectious disease aggregation in schools or daycare institutions with multi-source data, to identify the advantages and disadvantages of the system, and to provide a basis for optimizing its warning function and exploring further integration of other data sources. Methods The infectious disease warning data from the Chinese infectious disease Automated-alert and Response System (ARS), the Student Health Monitoring System (SHMS) in Foshan City, Guangdong Province, and WMS were collected from January 2021 to July 2023.The indicators such as sensitivity, specificity, Youden index, positive predictive value, early warning and median timeliness were used to comprehensively evaluate the early warning monitoring system. Results The ARS was not sensitive to common infectious disease warnings in schools or daycare institutions.The median timeliness of the SHMS and the WMS was 1 day.The sensitivity of SHMS and the WMS for early warning of hand-foot-mouth disease, infectious diarrhea, influenza-like cases, chickenpox and other infectious diseases were more than 70%, while the sensitivity for novel coronavirus infection were only 10.42% and 64.58%.The Youden index and positive predictors of the WMS were both the highest. Conclusion The WMS can timely and effectively warn schools or daycare institutions of clustered epidemics, improve the positive predictive value, but the data sources are still insufficient, and it is necessary to continuously increase the data sources in future exploration to improve the warning ability. 1) 利益冲突声明 所有作者声明无利益冲突。 -
表 1 2021—2023年不同学校类型WMS预警情况分析/条
Table 1. Analysis of the WMS early warning among different types of schools in 2021-2023/section
学校类型 流感样病例 手足口病 水痘 其它感染
性腹泻病新型冠状
病毒感染急性出血
性结膜炎猩红热 流行性
腮腺炎合计 托幼机构 112 456 26 19 0 2 3 0 618 小学 313 62 78 101 11 4 0 1 570 中学 129 0 66 33 20 0 0 0 248 合计 554 518 170 153 31 6 3 1 1 443 表 2 3个系统对不同病种传染病的预警效果比较
Table 2. Comparison of early warning effect of three systems on different kinds of infectious deseases
系统 手足口病 感染性腹泻 流感样病例 水痘 新型冠状病毒感染 预警数 灵敏度/% 特异度/% 约登指数/% 阳性预测值/% 预警数 灵敏度/% 特异度/% 约登指数/% 阳性预测值/% 预警数 灵敏度/% 特异度/% 约登指数/% 阳性预测值/% 预警数 灵敏度/% 特异度/% 约登指数/% 阳性预测值/% 预警数 灵敏度/% 特异度/% 约登指数/% 阳性预测值/% ARS 240 0 76.89 - 0 49 0 91.17 - 0 18 0 88.89 - 0 0 0 100.00 - 0 246 2.08 97.95 0.04 0.41 SHMS 675 72.95 88.84 61.80 43.56 261 78.89 59.49 38.38 27.20 3 179 92.37 44.44 36.82 10.29 228 75.81 64.47 40.28 41.23 5 10.42 100.00 10.42 100.00 WMS 525 86.85 93.36 80.21 66.67 153 78.89 65.66 44.55 46.41 554 85.31 96.71 82.02 54.51 170 87.10 71.76 58.86 63.53 31 64.58 100.00 64.58 100.00 -
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