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. 2014 Apr 1;2014:875960. doi: 10.1155/2014/875960

Table 2.

Cognitive performance for NC, MCI, and AD.

Tests NC aMCI AD P*
Mean (SD) Mean (SD) Mean (SD)
MMSE 28.36 (1.48) 25.79 (2.74) 23.96 (2.90) <0.01a
Vocabulary 26.46 (9.81) 22.81 (9.38) 23.20 (9.16) 0.146
BD 25.43 (8.93) 18.39 (8.53) 14.18 (6.53) <0.01b
RCM 25.84 (6.23) 20.47 (6.31) 17.76 (5.99) <0.01b
Estimated IQ 98.77 (10.41) 91.08 (10.13) 87.95 (8.92) <0.01b

Note. P value refers to Kruskal-Wallis test; SD: standard deviation; MCI: mild cognitive impairment; AD: Alzheimer's disease; MMSE: Mini-Mental State Exam; IQ: intelligence quotient; BD: Block Design; RCM: Raven Colored Matrices.

aAll groups differ.

bNC differ from AD and aMCI; MCI is equal to AD.