Table 2.

Annual transition probabilities by current health state and sample populations

Sample variant	Annual probability of transitioning to a more severe dementia health state from current health state
	Asymptomatic	MCI-AD	Mild AD dementia	Moderate AD dementia	Severe AD dementiaa
Incident population	40.8%	26.5%	45.2%	59.8%	46.7%
Prevalent population	23.4%	36.9%	43.4%	55.5%	41.6%

AD Alzheimer’s disease, MCI-AD mild cognitive impairment due to Alzheimer’s disease

^aTransition from severe AD dementia to death