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从智能手机和专用全球定位系统设备进行位置数据比较:对流行病学研究的影响
American journal of epidemiology
|August 30, 2023
概括
这项研究比较了专门的GPS设备和智能手机应用程序,用于收集城市健康研究中的位置数据. 智能手机应用程序在将数据汇总到日级时,提供与专用GPS设备类似的结果.
科学领域:
- 环境健康 环境健康
- 地理信息系统 (GIS) 是指地理信息系统.
- 流行病学 流行病学
背景情况:
- 准确的位置数据对于了解城市环境对健康的影响至关重要.
- 将专用全球定位系统 (GPS) 设备和智能手机的数据进行比较,对于优化健康研究中的数据收集方法至关重要.
- 干预,公平和行动在城市团队 (INTERACT) 研究提供了一个有价值的数据集,用于这种比较.
研究的目的:
- 将专用GPS设备收集的位置数据的准确性和可靠性与智能手机应用程序进行比较.
- 评估从两个数据源中得出的活动空间指标的表现.
- 根据研究设计和数据聚合水平,为选择合适的位置跟踪技术提供建议.
主要方法:
- 利用了INTERACT研究的337名参与者的位置数据,这些数据是使用Ethica Data智能手机应用程序和SenseDoc专用GPS设备在六个月内收集的.
- 采用动态时间曲线和交叉相关性分析来评估GPS点的空间和时间相似性.
- 比较了来自智能手机和专用GPS数据的四个活动空间指标.
主要成果:
- 交叉相关值在125米分辨率的调查和日级超过0.8,随细胞大小的增加而增加.
- 在两种设备之间,在当天或调查层面的活动空间测量中观察到的差异很小.
- 高频,非聚合数据分析从专用GPS设备中受益.
结论:
- 对于需要高频,非聚合暴露和结果测量的研究,建议使用专门的GPS设备.
- 智能手机应用程序在将数据汇总到日级时,提供与专用GPS设备可比的结果.
- 选择位置跟踪技术应与研究设计和数据分析计划的具体要求保持一致.
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