Comprehensive Cancer Center, The Ohio State University, Columbus, OH, United States of America; Division of Cancer Prevention and Control, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH, United States of America.
Department of Epidemiology, School of Public Health, University of Washington, Seattle, Washington, United States of America.
Spat Spatiotemporal Epidemiol. 2022 Jun;41:100506. doi: 10.1016/j.sste.2022.100506. Epub 2022 Mar 24.
This study tested spatio-temporal model prediction accuracy and concurrent validity of observed neighborhood physical disorder collected from virtual audits of Google Street View streetscapes. We predicted physical disorder from spatio-temporal regression Kriging models based on measures at three dates per each of 256 streestscapes (n = 768 data points) across an urban area. We assessed model internal validity through cross validation and external validity through Pearson correlations with respondent-reported perceptions of physical disorder from a breast cancer survivor cohort. We compared validity among full models (both large- and small-scale spatio-temporal trends) versus large-scale only. Full models yielded lower prediction error compared to large-scale only models. Physical disorder predictions were lagged at uniform distances and dates away from the respondent-reported perceptions of physical disorder. Correlations between perceived and observed physical disorder predicted from the full model were higher compared to that of the large-scale only model, but only at locations and times closest to the respondent's exact residential address and questionnaire date. A spatio-temporal Kriging model of observed physical disorder is valid.
本研究测试了从谷歌街景虚拟审计中收集的观察到的邻里物理无序的时空模型预测准确性和同时效度。我们根据每个街区的三个日期的测量值,从时空回归克里金模型预测物理无序(整个城市地区的 256 个街区,共 768 个数据点)。我们通过交叉验证评估了模型的内部有效性,通过与乳腺癌幸存者队列中受访者报告的物理无序感知的皮尔逊相关性评估了外部有效性。我们比较了全模型(大尺度和小尺度时空趋势)与仅大尺度模型的有效性。全模型的预测误差低于仅大尺度模型。物理无序的预测在从受访者报告的物理无序感知的均匀距离和日期上存在滞后。全模型预测的感知和观察到的物理无序之间的相关性高于仅大尺度模型,但仅在最接近受访者确切住址和问卷日期的位置和时间上。观察到的物理无序的时空克里金模型是有效的。