Table 1.

Description of feature variables.

Notions and data sources	Variable name	Description
COVID-19 cases	Cum_confirm cases	Cumulative confirmed COVID-19 cases.
Source: World Health Organization (WHO COVID-19 Dashboard) [18]	Cum_deaths	Cumulative COVID-19 death cases.
Socio-economic Indicators	GDP_per_capita	Gross domestic product per capita, is a proportion of a country’s financial yield represented by the number of individuals.
Source: World Bank[19], WHO’s global health observatory data repository [20]	Health Exp	Health expenditure per capita is the average amount that country is devoting for health services for an individual.
	Alcohol Consumption	Alcohol consumption rate per capita by an age group of 15+.
	Smoking Prevalence	Pervasiveness of smoking is the level of people over the age of 15 who presently smoke any tobacco item on a day by day or non-regular schedule.
	Life Expectancy	It is the anticipated years a baby would live if accepted examples of mortality at childbirth were to remain the equivalent for the duration of its life.
Disease Prevalence	Tuberculosis cases	Prevalence in terms of cases of tuberculosis disease.
Source: Global Burden of Disease Collaborative Network, Global Burden of Disease Study 2017 (GBD 2017) Results. Seattle, United States: Institute for Health Metrics and Evaluation (IHME), 2018 [21]	Cardiovascular Disease	Prevalence in terms of number of cases due to known cardiovascular causes such as ischaemic heat disease, stroke e.t.c.
	Diabetes Mellitus	Prevalence in terms of cases of diabetes mellitus.
	Respiratory Infections	Prevalence in terms of cases of Respiratory infections such as pneumonia and bronchitis.
	Asthma	Prevalence in terms of cases of chronic lung disease asthma.
	Nutritional deficiencies	Prevalence in terms of cases of nourishing inadequacies including protein-energy unhealthiness, lack of iodine, nutrient A insufficiency, iron inadequacy, and other health insufficiencies.
Environmental Performance Indicators	PM2.5 exposure (PMD)	It is the indicator of number of people who have lost life years per 100,000 people due to exposure to fine air particulate matter smaller than 2.5 micrometers.
Source: Environmental Performance Index, 2020 [22].	Environmental Performance Index (EPI)	It is a score assigned from 1 to 100, on the basis of how close countries are to set up health environmental targets
	Environmental Health (HLT)	It gives the environmental health score of a country.
	Air Quality (AIR)	Country score on the basis of effects of air contamination.
	Household Solid Fuels (HAD)	Indicator of AIR issue category which gives score on the basis of lives lost due to use of household solid fuels.
	Sanitation and Drinking Water (H2O)	Country score on basis of how well nations shield human well-being from natural dangers on two pointers: UWD and USD.
	Unsafe Water for Drinking (UWD)	Country score on basis of people who have lost life years per 100,000 people due to insufficient proper drinking water facilities.