A meta-analysis of 16 studies looked at the association between apathy in older individuals with and without incident dementia.1 It turns out that memory clinic patients assigned with a definition of apathy had double the risk for incident dementia.
The importance of this study is that relevant, inexpensive, and easily implementable approaches to treating apathy may influence patients at risk for dementia.
1. van Dalen JW, van Wanrooij LL, Moll van Charante EP, et al. Association of Apathy With Risk of Incident Dementia: A Systematic Review and Meta-analysis. JAMA Psychiatry. 2018 Jul 18. [Epub ahead of print]