Performance of a Mobile Phone App-Based Participatory Syndromic Surveillance System for Acute Febrile Illness and Acute Gastroenteritis in Rural Guatemala
Performance of a Mobile Phone App-Based Participatory Syndromic Surveillance System for Acute Febrile Illness and Acute Gastroenteritis in Rural Guatemala
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DOI：
10.2196/jmir.8041
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发表时间：
2017-11-01
影响因子：
7.4
通讯作者：
Asturias, Edwin Jose
中科院分区：
文献类型：
--
作者：
Olson, Daniel;Lamb, Molly;Asturias, Edwin Jose
背景资料：随着移动的电话在资源有限的环境中越来越普及，它可能成为参与性综合征监测的重要工具，用户可将症状数据直接输入中央数据库。我们研究了基于移动的手机应用程序的参与式症状监测系统收集症状数据的性能（急性发热性疾病和急性胃肠炎），以检测生活在危地马拉低资源和农村地区的儿童队列中的登革热病毒和诺如病毒。向随机化的家庭提供移动的电话，并要求他们使用症状日记应用程序（Vigilant-e）提交每周报告。报告急性发热性疾病或急性胃肠炎的受试者使用决策树算法回答了其他问题，随后由研究护士上门访视，研究护士进行第二次访视，并采集登革热病毒样本（如果确认急性发热性疾病）和诺如病毒样本（如果急性胃肠炎）。我们使用Vigilant-e应用程序分析了与症状数据自我报告减少相关的风险因素，并评估了改善自我报告的策略。我们还评估了自我报告和护士收集的数据之间的协议在家访。结果：从2015年4月至2016年6月，469名儿童在207个家庭提供了471人-年的观察。平均每周症状报告率为78%（范围58%-89%）。贫困家庭（
Background: With their increasing availability in resource-limited settings, mobile phones may provide an important tool for participatory syndromic surveillance, in which users provide symptom data directly into a centralized database.Objective: We studied the performance of a mobile phone app-based participatory syndromic surveillance system for collecting syndromic data (acute febrile illness and acute gastroenteritis) to detect dengue virus and norovirus on a cohort of children living in a low-resource and rural area of Guatemala.Methods: Randomized households were provided with a mobile phone and asked to submit weekly reports using a symptom diary app (Vigilant-e). Participants reporting acute febrile illness or acute gastroenteritis answered additional questions using a decision-tree algorithm and were subsequently visited at home by a study nurse who performed a second interview and collected samples for dengue virus if confirmed acute febrile illness and norovirus if acute gastroenteritis. We analyzed risk factors associated with decreased self-reporting of syndromic data using the Vigilant-e app and evaluated strategies to improve self-reporting. We also assessed agreement between self-report and nurse-collected data obtained during home visits.Results: From April 2015 to June 2016, 469 children in 207 households provided 471 person-years of observation. Mean weekly symptom reporting rate was 78% (range 58%-89%). Households with a poor (