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Table 2 Clinical Diagnoses of 227 Patients with a Pathologic Diagnosis of Pure AD. More than a third of pathologic AD cases on the Mayo Clinic Brain Bank from 2007 to 2016 were not expected to have AD. Plus sign (+) in the column on clinical diagnosis indicates additional clinical diagnoses are supported. Bold indicates significance differences from the pure AD cases (Student t-Test, p < 0.01)

From: The neuropathological diagnosis of Alzheimer’s disease

Clinical Dx

Cases (n)

Age (yr)

Brain (g)

Braak

Thal

AD

109

77.3 ± 11.2

1061 ± 163

5.5 ± 0.7

4.7 ± 0.7

AD+

35

73.0 ± 8.5

1069 ± 138

5.6 ± 0.6

4.8 ± 0.5

LBD

16

80.9 ± 9.8

1073 ± 158

5.3 ± 0.6

4.5 ± 0.8

CBS

12

71.3 ± 7.4

1008 ± 169

5.9 ± 0.3

5.0 ± 0.0

FTD

10

66.4 ± 8.9

1103 ± 128

5.5 ± 1.1

4.9 ± 0.4

Aphasia

6

72.2 ± 7.1

940 ± 109

5.9 ± 0.2

4.8 ± 0.4

Other

21

78.2 ± 10.3

1132 ± 155

5.4 ± 0.8

5.0 ± 0.0

MCI

11

87.7 ± 6.9

1162 ± 136

4.9 ± 0.6

5.0 ± 0.0

Normal

7

85.9 ± 6.6

1251 ± 120

4.7 ± 0.8

3.0 ± 0.0