Predicting Who Will Develop Dementia in a Cohort of Canadian Seniors- Table 2

Table 2: Outcome of Different Types of Mild Cognitive Impairment^10-12

% 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 Forgetfulness^c (56)

48.3

35.7

34.5

Age Associated Cognitive Decline^d(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 Impairment^f (104)

21.4

14.0

35.3

Age Consistent Memory Impairment^g (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.

Table 2: Outcome of Different Types of Mild Cognitive Impairment^10-12
	% 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 Forgetfulness^c (56)	48.3	35.7	34.5
Age Associated Cognitive Decline^d(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 Impairment^f (104)	21.4	14.0	35.3
Age Consistent Memory Impairment^g (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.