Supplementary Materials for A vulnerability-based approach to human-mobility reduction for countering COVID-19 transmission in London while considering local air quality Manu Sasidharan, Ajit Singh, Mehran Eskandari Torbaghan, Ajith Kumar Parlikad Correspondence to:
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[email protected] This PDF file includes: Materials and Methods Figs. S1 to S2 Tables S1 Materials and Methods The currently available data (as of 31 March 2020) on COVID-19 morbidity and mortality for different NHS Hospital Trusts in London were utilized in this study [23,18]. The Office of National Statistics (A Baker, personal communication, 2020) confirmed that they are unable to provide COVID-19 related fatality data categorized by each London borough or local authority. To this end, the deaths reported by individual NHS Hospital Trusts in London were employed to inform the reported deaths for each London borough. The fatality rate across each London borough was estimated by dividing the number of reported deaths by the number of reported positive COVID-19 cases. Due to the unavailability of data, this study does not include the number of people who are self-isolating due to COVID-19 within the analysis. The air pollution data associated with particulate matter (PM2.5) and nitrogen dioxide (NO2) for each London borough was collected from [24]. An ecologic analysis was conducted to explore the correlation between short-term air pollution (PM2.5 and NO2 levels) and COVID-19 cases and fatality rate in each London borough. To this end, a linear regression model was fitted to the data for regions with more than 100 reported cases and 10 COVID-19 related deaths.