Are You Approaching Standards in Epidemiology?

In many cases, people this idea that these metrics just exist. But the realityis it's more complicated than that. And all of these proxies, all these data sources that we use to get to that final figure really matter. Are there any standards people follow? Like, i know the notion of what did a person die from? Some places they put one thing, sometimes there are three bullets,. Different changes like that can dramatically change how ar researcher needs to interpret the data. We are approaching standards in some locations. The issue is, of course, heterogeneity, and who gets what information out of this system.