Table 1.

Summary of variables.

Variable	Measure	Code	Source
Panel A: The impact of Internet access on health inequality (1993–2019)
Health inequality	The absolute concentration index calculated based on the infant mortality rate across different economic status groups in a country	HealthInequality	WHO
Health indicator	The average infant mortality rate in a country	IMR	WHO
Panel B: The social and economic determinants of access to healthcare (1990–2016)
Healthcare accessibility	The overall score of healthcare access and quality in a country	HealthcareAccess	GBD
Income inequality	GINI index, a synthetic measure of statistical dispersion to represent the inequality in a country	IncomeInequality	SWIID
Panel C: Independent and control variables in both analyses
Internet access	The individuals using the Internet as a proportion of the population	Internet	WDI
Gross domestic product	The logarithm of GDP in current U.S. dollars	GDP	WDI
Gross domestic product per capita	The logarithm of GDP per capita in current U.S. dollars	GDPPC	WDI
Trade liberalization	The ratio of the sum of exports and imports of goods and services to GDP	TL	WDI
Government effectiveness	Government effectiveness index from the Worldwide Governance Indicators	GE	WGI