TY -非盟的阮文森特盟——刘Yunzhe AU -芒福德,理查德AU -弗拉纳根,本杰明AU -帕特尔,Parth AU -布雷斯韦特,伊莎贝尔盟——Shrotri Madhumita AU -伯恩,托马斯AU -比尔,莎拉AU -阿尔耶前来,安娜盟,方翼Lam埃里卡盟——Fragaszy艾伦盟——美国西里尔盟——Navaratnam Annalan M D AU - Hardelid Pia AU -柯伐,Jana盟——教皇,阿迪AU - Cheng道盟-海沃德,Andrew AU -奥尔德里奇,使用全球定位系统数据跟踪英格兰和威尔士首次接种SARS-CoV-2疫苗前后的流动性变化(病毒观察):前瞻性观察社区队列研究JO - JMIR公共卫生监测SP - e38072 VL - 9 KW - COVID-19 KW - SARS-CoV-2 KW -疫苗接种KW -全球定位系统KW - GPS KW -运动跟踪KW -地理跟踪KW -移动应用KW -卫生应用KW -监测KW -公共卫生KW -移动健康KW -移动监测KW -跟踪设备KW -地理定位AB -背景:有证据表明，个人在未完全接种SARS-CoV-2疫苗的情况下，首次接种SARS-CoV-2疫苗后，可能会改变对旨在减少SARS-CoV-2病毒接触、传播和传播的公共卫生政策的依从性。目的:我们旨在估计我们的队列在接受SARS-CoV-2疫苗之前和之后与其注册地址的每日旅行距离中位数的变化。方法:从2020年6月开始招募参与者参加病毒观察。每周向参与者发送调查，并从2021年1月起收集疫苗接种状况。在2020年9月至2021年2月期间，我们邀请了13120名成年病毒观察参与者为我们的跟踪器亚队列做出贡献，该队列通过智能手机应用程序使用GPS收集运动数据。我们使用分段线性回归来估计首次自我报告的SARS-CoV-2疫苗剂量前后的每日旅行距离中位数。结果:我们分析了249名接种疫苗的成年人的每日出行距离。 From 157 days prior to vaccination until the day before vaccination, the median daily travel distance was 9.05 (IQR 8.06-10.09) km. From the day of vaccination to 105 days after vaccination, the median daily travel distance was 10.08 (IQR 8.60-12.42) km. From 157 days prior to vaccination until the vaccination date, there was a daily median decrease in mobility of 40.09 m (95% CI –50.08 to –31.10; P<.001). After vaccination, there was a median daily increase in movement of 60.60 m (95% CI 20.90-100; P<.001). Restricting the analysis to the third national lockdown (January 4, 2021, to April 5, 2021), we found a median daily movement increase of 18.30 m (95% CI –19.20 to 55.80; P=.57) in the 30 days prior to vaccination and a median daily movement increase of 9.36 m (95% CI 38.6-149.00; P=.69) in the 30 days after vaccination. Conclusions: Our study demonstrates the feasibility of collecting high-volume geolocation data as part of research projects and the utility of these data for understanding public health issues. Our various analyses produced results that ranged from no change in movement after vaccination (during the third national lock down) to an increase in movement after vaccination (considering all periods, up to 105 days after vaccination), suggesting that, among Virus Watch participants, any changes in movement distances after vaccination are small. Our findings may be attributable to public health measures in place at the time such as movement restrictions and home working that applied to the Virus Watch cohort participants during the study period. SN - 2369-2960 UR - https://publichealth.www.mybigtv.com/2023/1/e38072 UR - https://doi.org/10.2196/38072 UR - http://www.ncbi.nlm.nih.gov/pubmed/36884272 DO - 10.2196/38072 ID - info:doi/10.2196/38072 ER -