Skip to main content
. Author manuscript; available in PMC: 2009 Oct 1.
Published in final edited form as: Alzheimer Dis Assoc Disord. 2008 Oct–Dec;22(4):382–391. doi: 10.1097/wad.0b013e318185e7fe

Table 2.

Age and subject numbers amongst cognitive syndromes

Group Normal Cognition MCI Dementia
African Americans
    N 59 31 13
    Age (yrs) 73.5 ± 7.0 75.7 ± 6.9 76.6 ± 5.6
    Education 14.0 ± 2.4 11.7 ± 3.8 11.9 ± 4.1
    MMSE¶¶¶ 27.7 ± 2.2 25.4 ± 3.5 19.7 ± 5.1
    Blessed Roth¶¶¶ 0.15 ± .61 0.69 ± 0.70 3.9 ± 1.8
Caucasians
    N 70 73 47
    Age (yrs) 73.8 ± 7.3 75.3 ± 7.4 77.7 ± 7.6
    Education 14.5 ± 3.3 15.2 ± 3.1 13.1 ± 3.7
    MMSE¶¶¶ 28.9 ± 1.2 27.2 ± 1.9 21.6 ± 5.0
    Blessed Roth¶¶¶ 0.3 ± 0.8 1.4 ± 1.1 4.6 ± 3.2
Hispanics
    N 55 30 22
    Age (yrs) 71.1 ± 6.8 72.1 ± 7.5 77.3 ± 7.0
    Education 8.9 ± 5.7 7.0 ± 5.8 6.0 ± 4.4
    MMSE¶¶¶ 27.5 ± 2.7 22.7 ± 5.4 16.6 ± 5.8
    Blessed Roth¶¶¶ 0.6 ± 1.3 1.2 ± 1.1 4.2 ± 2.3

Group differences

p < 0.01

¶¶ p < 0.001

¶¶¶

p < 0.0001