Research, based on experiences and outcomes concerning people with dementia living alone (with and without help from an informal caregiver) in Germany, indicates that it is possible – provided adequate support services are available – to survive without significant unduly increased health risks.
Eichler, T. Hoffmann, W. [and] Hertel, J. [et al] (2016). Living alone with dementia: prevalence, correlates and the utilization of health and nursing care services. Journal of Alzheimer’s Disease. May 10th 2016; 52(2): pp.619-29.