"Media" as a measure of central tendency I've just read a meta-analysis that used 'media' as a measure of central tendency: "The media of skin side events related to PPE was 75.13%". I've never come across the use of "media" like this  before- is this a typo, a variation on median, or is it something else?

Looking further down the article we find the concept of media +- sd which strongly suggests it is the mean. The authors have Hispanic names and looking in the Dictionary of the Royal Academy we find
https://dle.rae.es/medio#QsIjfFA

media aritmética

*

*f. Mat. Resultado de dividir la suma de varias cantidades por el número de ellas.


Translation

arithmetic mean
feminine noun Mathematics. The result of dividing the sum of various quantities by the number of them

