A common feature of many of these is that MCI involves cognitive impairments that are measurable but that are not significant enough to interfere with instrumental activities of daily living.
[4][3][9] Studies suggest that these individuals tend to progress to probable Alzheimer's disease at a rate of approximately 10% to 15% per year.
[21] The American Academy of Neurology's (AAN) clinical practice guideline on MCI from January 2018 stated that clinicians should identify modifiable risk factors in individuals with MCI, assess functional impairments, provide treatment for any behavioral or neuropsychiatric symptoms, and monitor the individual's cognitive status over time.
[4] Current evidence suggests that cognition-based interventions do improve mental performance (i.e. memory, executive function, attention, and speed) in older adults and people with mild cognitive impairment.
[23] According to research conducted in England, people with MCI often do not receive adequate care and support in healthcare settings.
The lack of services also fails to point them to effective ways to prevent dementia such as exercise and social contact.
[4] After a two-year follow-up, the cumulative incidence of dementia among individuals who are over 65 years old and were diagnosed with MCI was found to be 14.9%.
[4] Due to the emphasis shifting to the earlier diagnosis of dementia, more people are assessed who report memory problems.
[medical citation needed] MCI was initially conceptualized as an intermediate stage between normal aging and Alzheimer's disease.
[29] In 2003 international criteria for MCI were developed that broadened the definition to include people with cognitive impairment due to any etiology.