**5. Conclusions**

Depression should be considered a risk factor for dementia, and especially AD. Moreover, people with diabetes are at higher risk of dementia than those without this chronic condition, so the appropriate approach to diabetes could significantly decrease this causal relationship. In addition, properly treated dyslipidemia may reduce the risk of dementia.

Regarding sociodemographic variables, age appears to be a decisive risk factor, even more relevant than depression.

**Author Contributions:** V.C.-H., M.d.P.C.-G. and M.R.-R. conceptualized the project and conceived the study design. V.C.-H. and M.d.P.C.-G. performed the data collection. M.R.-R. analyzed the data. V.C.-H. drafted the manuscript. M.d.P.C.-G., M.R.-R. and M.R.-S. reviewed and edited the draft manuscript. All authors have read and agreed to the published version of the manuscript.

**Funding:** This study was supported by the Health Department of the Regional Government of Andalusia (PI-0357–2017).

**Acknowledgments:** We would like to thank the patients and families who participated in the recruitment process, as well as the institutions "Asociación San Rafael de Alzheimer y otrasdemencias" (Córdoba), Residencia de mayores de fundaciónGerón de Villaharta (Córdoba), Residencia de Jesús Nazareno (Córdoba) and Residencia de Mayores Altos del Jontoya (Jaén).

**Conflicts of Interest:** The authors declare no conflict of interest.

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