Updated statistics on Influenza mortality.

Abstract

We have planned this analysis to provide current statistics on mortality directly caused by Influenza viruses in recent years in the US. We performed an electronic search in the online database CDC WONDER to obtain current statistics on direct mortality caused by Influenza viruses in the US. Mortality data are derived from information on all death certificates issued in the 50 states and the District of Columbia, excluding deaths of nonresidents. Our basic query criteria included Influenza-specific ICD-10 codes. Influenza caused an average of 7,670 deaths per year from 2018 to 2020 based on Influenza-specific ICD-10 codes, with a corresponding mean death rate of 2.3 × 100,000. The death rate increased in parallel with the age of the US resident population, from 0.2 × 100,000 in the 5-24 age group to 37.4 × 100,000 in US residents aged 85 years or older. No substantial differences were observed in males vs. females. The results of this analysis show that Influenza remains a significant clinical burden in the general population, with a cumulative mortality rate of approximately 2.3 × 100,000, but increasing more than tenfold (to over 37 × 100,000) in older persons.