Discovery cohort


Group

N

Gender (M:F)

p
value

Age (mean ± SD)

p
value


RIA

10

8:2
 
52.4 ± 9.0
 
UIA

10

8:2
 
55.2 ± 3.9
 
HC

10

8:2
 
52.8 ± 6.9
 
DC

10

8:2

1^{a}

54.6 ± 4.2

0.50^{b}

Validation cohort

Group

N

M:F

p
value

Age

p
value

RIA

20

7:13
 
51.7 ± 8.4
 
UIA

20

7:13
 
51.2 ± 10.2
 
HC

20

7:13
 
50.8 ± 7.6
 
DC

20

7:13

1 ^{a}

49.5 ± 7.7

0.85^{C}

 ^{a}Gender difference between d groups analyzed by the χ^{2} test. ^{b}Age difference between groups in the discovery cohort analyzed by the nonparametric KruskalWallis test (the variances were unequal by Bartlett’s test, p <0.05). ^{c}Age difference between groups in the validation cohort analyzed by the NewmanKeuls multiple comparison test (the variances were equal by Bartlett’s test, p >0.05).