Table 3 Demographics of the neuroimaging subgroups

From: Retinal vascular biomarkers for early detection and monitoring of Alzheimer’s disease

 

HC−

HC+

P-value

Number of participants: (N)

30

15

 

Age: years (mean (s.d.))

70.4 (5.3)

73.7 (6.3)

0.08a

Gender; Males: (N (%))

15 (50)

9 (60)

0.53b

n(hypertension)

11 (37)

6 (40)

0.52b

n(diabetes)

1 (3)

2 (13)

0.99b

n(smokers)

2 (7)

0 (0)

0.99b

APOE ε4 carrier: (N (%))

14 (47)

12 (75)

0.04 b

  1. HC−: healthy controls with low plaque burden, HC+: healthy controls with high plaque burden. s.d.: standard deviation. No demographic was significantly different between groups. Significant results in bold type.
  2. aAnalysis of variance (ANOVA) for the continuous age demographic variable (P<0.05 considered significant).
  3. bχ2 test for categorical demographic variables (gender, hypertension, diabetes, smoking status and APOE ε4 carrier status) (P<0.05 considered significant).
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