🌻 Which factors and links were most frequently mentioned ?
Similar to overall frequency counts in non-causal coding ("which themes are mentioned most often?"), we can count how often particular causal factors are mentioned, and the number of sources mentioning a factor.

And we can, with caveats, interpret the frequency with which a link is mentioned as the strength of the evidence for that link.

We can simply make a table with the number of times each factor was mentioned or cited overall, and sort it in descending order to see the most important ones.