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Table 2 Characteristics of AD patients and healthy volunteers

From: A change of PD-1/PD-L1 expression on peripheral T cell subsets correlates with the different stages of Alzheimer's Disease

Variable

Healthy volunteers

(n = 16)

Total AD

(n = 16)

Mild AD

(n = 10)

Moderate AD

(n = 6)

Age - years (mean ± SD)

74.9 ± 8.51

80.1 ± 5.77

80.6 ± 5.45

78.5 ± 6.44

Gender—no. (%)

 

 Female

9 (56.25%)

11 (68.75%)

8 (80%)

3 (50%)

 Male

7 (43.75%) 

5 (31.25%) 

2 (20%)

3 (50%)

Education duration—years

–

4.35 ± 4.12

3.2 ± 3.88

6 ± 4.56

CDR

–

1.375 ± 0.50

1

2

CDR-SOB

–

9.219 ± 3.69

6.85 ± 1.81

13.17 ± 2.23

MMSE

–

11.5 ± 5.47

14.2 ± 3.71

7.00 ± 5.10

MMSE-minus

–

10.125 ± 6.78

5.8 ± 2.57

17.33 ± 5.13

  1. AD Alzheimer’s disease, SD standard deviation, CDR Clinical Dementia Rating, CDR-SOB Clinical Dementia Rating Scale Sum of Boxes, MMSE Mini-Mental State Examination, MMSE-minus Education-based MMSE cut-off value minus MMSE score