Estimation of excess mortality from all causes during the Covid-19 pandemic in Mexico

Objective.To estimate excess mortality from all causes in Mexico in 2020.Materials and methods.We constructed an endemic channel with deaths (2015-2018) establishing the epidemic threshold at the 90th percentile, comparing with death certificates counts to estimate excess mortality. Results.At week 53, there were 326 612 excess deaths (45.1%), with a maximum in week 28 (98.0%) and a minimum at week 41 (35.2%); after week 42, the increasing trend remained for the rest of the year. It was proportionally higher in men, mainly aged 45-64 years, however, in those aged 60 and over, the highest number of deaths occurred. Conclusion. In Mexico, excess mortality has been prolonged compared to other countries, with high interstate variability.This could be explained by socioeconomic conditions and the high prevalence of comorbidities in the Mexican population.