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Table 1 Demographics

From: 18F-florbetaben Aβ imaging in mild cognitive impairment

     MCI subtype
  HC ( n = 15) AD ( n = 15) All MCI ( n = 45) naMCI ( n = 4) asMCI ( n = 12) amMCI ( n = 29)
Age 68.8 ± 6.5 69.5 ± 9.7 72.7 ± 6.5 74.5 ± 6.8 70.2 ± 6.9 73.5 ± 6.3
Years of education 13.3 ± 3.6 12.8 ± 3.9 13.6 ± 3.6 14.8 ± 1.7 15.2 ± 3.9 12.8 ± 3.6
Males, n (%) 8 (53) 10 (66.7) 29 (64) 4 (100) 7 (58) 18 (62)
MMSE 29.5 ± 0.8 23.7 ± 3.8 27.2 ± 1.8AB 27.3 ± 1.3AB 27.4 ± 2.2AB 27.2 ± 1.7AB
CDR 0.0 ± 0.0 1.0 ± 0.0 0.4 ± 0.2AB 0.4 ± 0.3AB 0.5 ± 0.1AB 0.4 ± 0.2AB
CDR SOB 0.0 ± 0.0 4.8 ± 1.1 1.5 ± 1.0AB 1.8 ± 1.0AB 1.5 ± 1.1AB 1.5 ± 0.9AB
Composite EM 0.0 ± 0.8 -3.5 ± 0.8 -2.1 ± 1.1AB -0.6 ± 0.4ABC -2.3 ± 1.1AB -2.2 ± 1.1AB
Composite NM 0.6 ± 1.1 -3.1 ± 1.8 -0.9 ± 0.9AB -0.8 ± 1.0AB -0.1 ± 0.4ABD -1.3 ± 0.8AB
  1. AD, Alzheimer's disease; amMCI, amnestic multidomain mild cognitive impairment; asMCI, amnestic single-domain mild cognitive impairment; CDR, Clinical Dementia Rating; EM, episodic memory z score; HC, healthy older controls; MCI, mild cognitive impairment; naMCI, nonamnestic mild cognitive impairment; NM, nonmemory z score; SOB, sum of boxes. AP < 0.05, MCI subtype compared with HC. BP < 0.05, MCI subtype compared with AD. CP < 0.05, naMCI compared with asMCI and amMCI. DP < 0.05, asMCI compared with naMCI and amMCI.