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Table 1 Participant demographics

From: The role of perfusion, grey matter volume and behavioural phenotypes in the data-driven classification of cognitive syndromes

 

Cognitively normal (n = 80)

Subjective cognitive impairment (n = 97)

Mild cognitive impairment (n = 192)

Dementia (n = 4)

p-value

Age at visit, mean (SD)

56.9 (11.2)

58.1 (9.2)

63.3 (9.6)a,b

77.5 (11.2)a,b,c

< 0.001

Sex, female (n, %)

51 (63.8)

64 (65.9)

91 (47.4)

2 (50)

0.01

Education years, mean (SD)

14.5 (3.1)

14.6 (2.7)

13.6 (3.8)

8.5 (5.9)a,b,c

< 0.001

Visual Cognitive Assessment Test, mean (SD)

27.02 (2.3)

26.9 (2.3)

25.3 (3.7)a,b

17.5 (6.1)a,b,c

< 0.001

History of diabetes (n, %)

9 (11.3)

9 (9.3)

36 (18.8)

0 (0)

0.09

History of hypertension (n, %)

15 (18.8)

22 (22.7)

55 (28.6)

2 (50)

0.19

History of hyperlipidemia (n, %)

25 (31.3)

34 (35.1)

91 (47.6)

1 (25)

0.03

  1. Superscript letters indicate whether group mean was significantly different compared with aCN, bSCI and cMCI based on post-hoc comparisons (p<0.05) following one-way analysis of variance
  2. Abbreviations: CN Cognitively normal, SCI Subjective cognitive impairment, MCI Mild cognitive impairment