Table 2: Outcome of Different Types of Mild Cognitive Impairment10-12

% Survivors 
with Dementia
% Survivors with AD
% Dead

Mild Cognitive Impairment (ICD-10 - Type 3)a (n=112)

50.9

28.8

42.4

Mild Cognitive Impairment (DSM-III-R -Type 2)b (135)

50.0

38.2

53.8

Late Life Forgetfulnessc (56)

48.3

35.7

34.5

Age Associated Cognitive Declined (259)

45.4

35.8

46.7

Mild Cognitive Impairment (ICD-10 -Type 2)e (210)

34.1

21.8

52.4

Age Associated Memory Impairmentf (104)

21.4

14.0

35.3

Age Consistent Memory Impairmentg (75)

20.0

11.6

30.1

aICD-10 Type 3. Short or long term memory impairment with a decline in intellectual abilities and personality change. No functional disabilities.

bDSM-III-R Type 2. Short and long term memory impairment and personality change or impairment in at least one of the following: abstract thinking, judgement, higher cortical function (eg, aphasia, apraxia, agnosia). No functional disabilities.

cLate-Life Forgetfulness. Subjective memory complaints with gradual onset. Verbal and performance IQ scores between 90 and 130. Performance between 1 and 2 SDs below the mean established for age on 50% or more of the test administered.

dAge Associated Cognitive Decline. Gradual decline in any one cognitive area of at least six months duration and performance at least 1 SD below norms for age on relevant neuropsychological tests. These criteria were developed by a working group of the International Psychogeriatrics Association (Wilmette, Illinois) and the World Health Organization (Geneva, Swizerland).

eICD-10 Type 2. Short or long term memory impairment with a decline in intellectual abilities. No functional disabilities.

fAge-Associated Memory Impairment (AAMI). Subjective memory complaints with gradual onset. Verbal and performance IQ scores between 90 and 130. Performance at least 1 SD below the mean established for young adults on one or more tests.

gAge-Consistent Memory Impairment (ACMI). Subjective memory complaints with gradual onset. Verbal and performance IQ scores between 90 and 130. Performance within ± 1 SD of the mean established for age on 75% or more of the tests administered.