I remember reading some statistics from the XIX century USA related to causes of death.
Many categories were hilarious, including hickups, being dead drunk and so on...
The most problematic was the category containing deaths related to abdomen. What was the exact cause - who knows. Liver, gut cancer, kidneys... Who knows
What the hell! Hilarious indeed! Dead from hickups? Really? Is this a thing?
We will never know. We only need to ba careful when doing the related comparisons (and this extents to many other fields).