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. 2021 May 20;17:56. doi: 10.1186/s12992-021-00707-2

Table 1.

List of independent variables to explain the diffusion of reported COVID-19 cases

Variable Description Category Units (Transformation) Source Year
Interpersonal Globalisation Globalisation Index Value (100 Point Scale) Swiss Economic Institute (KOF) 2019
Trade Globalisation Globalisation Index Value (100 Point Scale) Swiss Economic Institute (KOF) 2019
Financial Globalisation Globalisation Index Value (100 Point Scale) Swiss Economic Institute (KOF) 2019
Urbanisation Rate Settlement National (Percent) World Bank 2018
Population Density Settlement Log transformed value of Inhabitants per square kilometer World Bank 2018
Urban Density Settlement Inhabitants per square kilometer in Densest Metropolitan Area Demographia 2020
Areal Accessibility Settlement The area-weighted average for driving time to a location with at least 1500 inhabitants per square kilometer Weiss et al. (2018) 2018
Human Development Population Index Value United Nations Development Programme 2018
Population aged 65 and over Population Percent Age 65+ United Nations, Department of Economic and Social Affairs Population Division 2019
Household Size Population Mean Number of Household Members United Nations, Department of Economic and Social Affairs Population Division 2019
Population Population Total population United Nations 2019