Table 1 Demographic characteristics of individuals with and without microbleeds.

From: Automated detection of cerebral microbleeds on T2*-weighted MRI

Microbleed status

Positive

Negative

Total

Statistic

Baseline

N

44

34

78

Age, years: mean (SD)

76.3 (6.0)

73.3 (7.0)

74.5 (6.6)

t = 2.21, p = 0.03

Sex/gender, women: N (%)

20 (45)

21 (60)

41 (52)

χ2 = 1.37, p = 0.24

Race/ethnicity: N (%)

   

χ2 = 7.29, p = 0.06

 White

23 (52)

11 (32)

34 (44)

 

 Black

15 (34)

11 (32)

26 (33)

 

 Hispanic

4 (9)

11 (32)

15 (19)

 

 Other

2 (5)

1 (3)

3 (4)

 

Follow up

N

14

0

14

 

Age, years: mean (SD)

79.3 (6.1)

79.3 (6.1)

 

Time to follow-up, years: mean (SD)

4.86 (1.3)

4.86 (1.3)

 

Sex/gender, women: N (%)

8 (57)

8 (57)

 

Race/ethnicity: N (%)

 

  

 White

5 (36)

5 (36)

 

 Black

5 (36)

5 (36)

 

 Hispanic

3 (21)

3 (21)

 

 Other

1 (7)

1 (7)

 
  1. Microbleed positive participants are those who have at least one microbleed present (identified by two or more raters), and microbleed negative participants are those who have no microbleeds present (agreed by all three raters).