Controlling for known factors (depression, etc.) what would be a "common" temporal pattern for decline in ADLs and IADLs in someone as they shift from normal cognition functioning to mild cognitive impairment to non-vascular type dementia? My question gets at the hierarchy of ADLs and IADLs, and also the dynamic interplay between them, as well as the sensitivity of each separately and together to assess one's true functional status.
Sharing link,
https://academic.oup.com/psychsocgerontology/article/57/4/P338/593410
Regards!
There are standardized tests to assess the condition of patients. In particular, you mention two types of questionnaires, which allow to a certain extent to reflect the peculiarity of cognitive functions in patients with Alzheimer's disease. Standard questions allow to compare the data of numerous observations, including both own data and scientific literature. So, determining the type of ADL and IADL is important from the point of view of objectivity in evaluating the neurological and mental state of a patient with Alzheimer's disease.
Thanks, Adriana, for your suggestion - and while an interesting paper, my point is more about the progression of ADL or IADL limitations over time as it relates to cognitive decline. We know mental health issues impact both cognition and functioning - so controlling for this - what would be the trajectory and ordering of limitations in each of the ADLs or IADLs over time?
And Vladimir, appreciate your views. I am not so much asking about methods of assessing dementia or cognitive function, per se, but rather the progression of decrements in functioning as measured by individual ADLs or IADLs related to cognitive decline. But you are correct, in that the measure of assessing cognition would be instrumental to identify as part of the measurement approach.
A good article here about common sequencing pattern of limitations:
John N Morris, Katherine Berg, Brant E Fries, Knight Steel, Elizabeth P Howard. Scaling functional status within the interRAI suite of assessment instruments. BMC Geriatrics. 2013;13:128.
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