Age disaggregation of crude excess deaths during the 2020 spring COVID–19 outbreak in Spain and Netherlands

Spanish and Dutch official records of mortality and population during the 21st century are analyzed to determine the age specific crude death rate in the 2020 spring COVID–19 outbreak.

Excess death rate increases exponentially with age showing a doubling time [5.0, 5.6]a (Spain) and [3.9, 6.7]a (Netherlands), roughing doubling every five years of increase in age.The effective infection fatality rate in Spain also shows this doubling time.

Statistically significant mortality increase is noted above 45 a (Spain) and 60 a (Netherlands).

A statistically significant increase of mortality is also noted in Spain for the youngest age group.