Table 1

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

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.
Koh and Koh Journal of Occupational Medicine and Toxicology 2006 1:8 doi:10.1186/1745-6673-1-8