Objectives:

To study the relationship between case fatality rate and mortality with sociodemographic, economic and health variables during the first 90 day of the pandemic in 60 countries across four continents.

Methods:

A cross-sectional study was carried-out; cases were made up of 60 countries selected according to the magnitude of their affectation by Covid 19. Mortality and lethality were stratified and contrasted with the variables of the selected countries by means of comparison of means.

Results

: A strong correlation was found between mortality and lethality (r = 0.70). The day the disease began in a country and its growth in infected showed differences between countries: those with better economic indicators and human development index had less fatality at the beginning of the disease. As the incidence increased, these differences disappeared.

Conclusion

: Rev Med Hered. The results suggest that at the beginning of the disease in a country, the best services are important, but later when the disease has already spread, incidence is the most important variable. This result showed that there are no health resources that can reduce fatality, independent of any other characteristic of the affected

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