Worldwide differences in COVID-19-related mortality

Area of Science:

• Epidemiology
• Public Health
• Global Health

Background:

• COVID-19 has caused significant global mortality.
• International comparisons of mortality are crucial for understanding pandemic impact.
• Standardized metrics are needed to compare diverse country-level data.

Purpose of the Study:

• To compare COVID-19 mortality statistics across 78 countries.
• To adjust for population size and pandemic stage in mortality comparisons.
• To investigate correlations between mortality, life expectancy, and population density.

Main Methods:

• Utilized data from the European Centre for Disease Prevention and Control and Our World in Data.
• Calculated deaths per million inhabitants as the primary metric.
• Defined the pandemic stage by the date of the 10th reported death.
• Included countries reporting at least 10 deaths by April 9.

Main Results:

• Significant variations in COVID-19 mortality were observed globally.
• Asian countries generally exhibited lower mortality rates per million compared to European countries.
• Mortality on day 10 showed moderate correlation with life expectancy but not population density.
• By day 40, Italy and Spain had >250 deaths/million, while China and South Korea had <4 deaths/million.

Conclusions:

• Population size and pandemic stage significantly influence COVID-19 mortality statistics.
• Life expectancy is a potential factor associated with varying COVID-19 mortality rates.
• Geographical differences, particularly between Asia and Europe, highlight distinct pandemic trajectories.