<prompt> The annual Conversion rate to dementia in patients with mild congnitive impairment is10203040  <response>: The term mild cognitive impairment MCI has been used to describe the transition between normal cognition and Alzheimer dementia. Mild cognitive impairment is recognized as an impoant public health problem as a dementia risk. Annual conversion rates often range from 10 to 15 in clinic samples. Ref Harrison20th edition pg 2765 