Population mobility change for controlling the transmission of COVID-19:mobile phone data analysis in nine cities of China  

作　　者：Jizhe Xia Taicheng Li Zhaoyang Yu Erzhen Chen Yang Yue Zhen Li Ying Zhou 

机构地区：[1]Shenzhen Key Laboratory of Spatial Smart Sensing and Service,Guangdong Key Laboratory of Urban Informatics,Guangdong–Hong Kong-Macao Joint Laboratory for Smart Cities,Ministry of Natural Resources(MNR)Key Laboratory for Geo-Environmental Monitoring of Great Bay Area,School of Architecture and Urban Planning,Shenzhen University,Shenzhen,China [2]Ruijin Hospital,School of Medicine,Shanghai Jiao Tong University,Shanghai,China [3]Wenzhou Institute of Geotechnical Investigation and Surveying,Wenzhou,China

出　　处：《Geo-Spatial Information Science》2023年第4期627-641,共15页地球空间信息科学学报（英文）

基　　金：financial support from National Natural Science Foundation of China[grant numbers 42171400,71961137003,82103945];Research on Prevention and Control of COVID-19 in Guangdong Education Department[grant number 2020KZDZX1171];Natural Science Foundation of Guangdong[grant number 2021A1515011324];Natural Resources of Guangdong[grant number 202325];Shenzhen Science and Technology Innovation Commission[grant number JCYJ20190808174209308].

摘　　要：Mobility restriction measures were the main tools to control the spread of COVID-19,but the extent to which the mobility has decreased remained unsure.We investigated the change in local population mobility and its correlation with COVID-19 infections,using 1185 billion aggregated mobile phone data records in nine main cities in China from 10 January to 24 February 2020.The mobility fell by as much as 79.57%compared to the normal days in 2020 and by 58.13%compared to the same lunar period in 2019.The daily incidence of COVID-19 was significantly correlated with local daily mobility(R2=0.77,P<0.001).The instantaneous reproduction number R(t)declined by 3%when mobility was reduced by 10%in the GLM analysis(P<0.05).Our study indicated that the decreased mobility level,driven by a mixture effect of holiday and public health interventions,could substantially reduce the transmission of COVID-19 to a low level.Our study could provide evidence of mobility restriction to control local transmission for other places facing COVID-19 outbreaks or potential next waves.

关 键 词：COVID-19 mobile phone population mobility local transmission 

分 类 号：R181[医药卫生—流行病学]