The US Preventive Services Task Force is an authoritative group that issues evidence-based recommendations for clinical care.
They have recently updated their statement on Screening for Dementia and Cognitive Impairment.
Their recommendation remains that there is insufficient evidence to recommend for or against screening.
The guidance statement is the result of a very careful evidence summary and public comment period.
It also includes a very well done patient education brochure.
Both are included in the links below.