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Table 1 Various definitions of mild cognitive impairment (Adapted from Chong and Sahadevan [9])

From: Occupational health for an ageing workforce: do we need a geriatric perspective?

 

Amnestic MCI

AACD

AAMI

CIND

CDR = 0.5

Subjective memory impairment

+

+

+

NR

+

Subjective non-memory impairment

-

NR

NR

NR

NR

Objective memory impairment

+ a

+ b

+ c

+

+

Objective non-memory impairment

-

NR

NR

NR

NR

Functional decline

NR

NR

NR

NR

+/-

Functional impairment

-

NR

NR

NR

-

  1. Abbreviations MCI = mild cognitive impairment; AACD = age-associated cognitive decline; AAMI = age-associated memory impairment, CIND = cognitive impairment no dementia; CDR = clinical dementia rating scale; the score of 0.5 is used to denote, MCI + = must be present for diagnosis; - = must be absent for diagnosis; +/- = may or may not be present for diagnosis; NR = not required (or not mentioned as criteria for diagnosis); a: >1.5 SD below age-matched controls; b: within normal limits given person's age; c: >1 SD below mean for young adults.