While the prevalence of agitation tends to increase as Alzheimer's disease progresses, modifiable treatment factors appear to have a strong influence on the prevalence of agitation. Both physical design and staff treatment appear to influence agitation rates, as do some measures consistent with a low stimulus approach to Alzheimer's care.

Assisted living facilities have become increasingly popular for older adults needing assistance. They are intended to enable privacy and provide support, but the extent to which they do so, and the degree to which these relate to residents' needs, are unknown. This observational study of 1830 residents in 182 facilities indicates that, during the mid-afternoon, the majority of residents are awake (79%), and one-half (49%) are awake and in public spaces. Residents who are cognitively and functionally impaired are more likely to be in public spaces, but less likely to be engaged. Residents who are awake and alone in private spaces are less likely to be impaired, but more likely to have medical conditions. Thus, residents needing more oversight seem to be positioned to obtain that oversight.