Check the references. They’re weak, almost ouroboric.

I found this: (2010) Positive association of renal insufficiency with agriculture employment and unregulated alcohol consumption in Nicaragua

https://doi.org/10.3109/0886022X.2010.494333

Essentially moonshine consumption.

Interestingly drinking more water was associated with worse outcomes. I would hesitate to point to dehydration without evidence, as a harmful remedy is worse than doing nothing.

Moonshine consumption could probably be investigated further as it carries explanatory power.