Many categories were hilarious, including hickups, being dead drunk and so on...

What the hell! Hilarious indeed! Dead from hickups? Really? Is this a thing?

The most problematic was the category containing deaths related to abdomen. What was the exact cause - who knows. Liver, gut cancer, kidneys... Who knows

We will never know. We only need to ba careful when doing the related comparisons (and this extents to many other fields).