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. Author manuscript; available in PMC: 2017 Jan 13.
Published in final edited form as: Neurodegener Dis. 2016 Jan 13;16(3-4):218–224. doi: 10.1159/000441919

Table 3.

Group demographics for rate of progression from very mild (Clinical Dementia Rating = 0.5) to moderate dementia (Clinical Dementia Rating = 2).

CAA− / NP−
n=54
CAA− / NP+
n=139
CAA+ / NP−
n=8
CAA+ /
NP+
n=89
No.
missing
values
Sig
Median Time of
Dementia
Progression, y
4.5 3.4 4.5 3.9 -- X2(2)=5.94,
p=0.051
Female, n (%) 24 (44.4) 58 (41.7) 3 (37.5) 33 (37.1) 0 X2(2)=0.75,
p=0.69
Education, y 15.0 (3.4) 15.7 (2.8) 15.3 (2.3) 15.6 (3.1) 1 F(2,354)=1.15,
p=0.32
Hypertension, n(%) 32 (60.4) 73 (52.5) 4 (50.0) 42 (47.2) 1 X2(2)=2.04,
p=0.36
Hypercholesterole
mia, n(%)
20 (37.7) 60 (43.5) 5 (71.4) 50 (56.2) 3 X2(2)=4.38,
p=0.11
CAA Classification
at autopsy, n (%)
  None, Unknown 39 (72.2) 65 (46.8) -- -- --
  Mild 15 (27.8) 74 (53.2) -- -- --
  Moderate -- -- 8 (100) 52 (58.4) --
  Severe -- -- 0 (0) 37 (41.6) --
CERAD neuritic
plaque density,
n(%)
  None 26 (48.1) -- 0 (0) -- --
  Sparse 28 (51.9) -- 8 (100) -- --
  Moderate -- 51 (36.7) -- 25 (28.1) --
  Frequent -- 88 (63.3) -- 64 (71.9) --

Values are frequencies or means (standard deviation).

CAA+ / NP− group was combined with CAA−/NP− due to few observations.