Table 1 Study population

From: Augmenting radiological assessment of imaging evident dementias with radiomic analysis

 

Training cohort (n = 971)

Testing cohort (n = 70)

p value

Mean age in years (SD)

73.10 (10.77)

70.03 (11.85)

p = 0.343

Sex (n)

 Female

488 (50.26%)

35 (50.00%)

p = 1.0

 Male

483 (49.74%)

35 (50.00%)

 

Mean years of education (SD)

14.99 (6.47)

14.69 (4.31)

p = 0.369

Race (n)

  

p = 0.661

 White

838 (86.30%)

64 (91.43%)

 

 Asian

20 (2.06%)

1 (1.43%)

 

 Black/African American

87 (8.96%)

3 (4.29%)

 

 American Indian/Alaska Native

6 (0.62%)

0 (0%)

 

 Other

16 (1.65%)

2 (2.86%)

 

 Unknown

4 (0.41%)

0 (0%)

 

Mean MMSE (SD)

14.68 (16.14)

24.30 (13.97)

p = 0.1

MRIs (n)

 T1

899

67

 

 T2/FLAIR

601

55

 

Cases with neurodegenerative disorder (n)

Alzheimer’s disease

820

41

 

 Other imaging-evident dementias

149

28

 

 Vascular dementia (VD)

68

11

 

 Frontotemporal lobar degeneration (FTLD)

76

7

 

 Prion disease (PRD)

5

11

 
  1. Demographics for NACC cases in the training set (n = 971) and testing set (n = 70), as well as p values comparing demographics between the training and testing sets. Statistical comparisons were conducted with the Mann–Whitney U test for Age in years, Years of education, and MMSE score; Fisher’s exact test for Sex; and the Chi-square test for Race categories.