First, as sibling comment stated: unclear. A thought-to-exist correlation was shown to be spurious. Second: in my complete and utter layman's view, it is far m

First, as sibling comment stated: unclear. A thought-to-exist correlation was shown to be spurious. Second: in my complete and utter layman's view, it is far more likely that the causation is the other way around. That is: dementia could come across as hearing loss for the affected individual (or their nearest). As such, people with dementia would be more likely to get hearing aids - and therefore people with hearing aids would be more likely to suffer from dementia than people without. This is complete and utter speculation, but this line of reasoning makes more sense to me than the reverse (using hearing aids would aggravate dementia). Nevertheless, can't tell without data.