Table 1 Demographical Characteristics of Alzheimer’s Disease Patients and Vascular-related Variables in Patients With and Without Psychosis.

From: Clinicopathological correlation of psychosis and brain vascular changes in Alzheimer’s disease

Age, mean (S.D.)

Total (n = 145)

AD with Psychosis (n = 50)

AD without Psychosis (n = 95)

p-value

76.2 (7.1)

75.2 (7.7)

76.7 (6.8)

0.335*

Male gender, n (%)

94 (64.8)

32 (64.0)

62 (65.3)

1.000**

Caucasian race, n (%)

137 (94.5)

46 (92.0)

91 (95.8)

0.447**

MMSE, mean (S.D.)

17.4 (5.2)

16.8 (5.3)

17.7 (5.2)

0.669*

Education years, mean (S.D.)

15.6 (3.2)

16.1 (3.1)

15.3 (3.3)

0.131*

AD onset years, mean (S.D.)

8.67 (3.7)

8.78 (3.7)

8.62 (3.8)

0.881*

Psychiatric illness history, (Yes), n (%)

9 (6.2)

4 (8.0)

5 (5.3)

0.516**

On active anti-psychotic drugs, (Yes), n (%)

16 (11.0)

4 (8.0)

12 (12.6)

0.398**

CDR sum, mean (S.D.)

12.5 (4.9)

13 (4.6)

12.2 (5.0)

0.560*

VASC, (Yes), n (%)

121 (83.4)

44 (88.0)

77 (81.1)

0.404**

LINF, (Yes), n (%)

9 (6.2)

4 (8.0)

5 (5.3)

0.496**

MICRO, (Yes), n (%)

19 (13.1)

11 (22.0)

8 (8.4)

0.041**

LAC, (Yes), n (%)

21 (14.5)

7 (14.0)

14 (14.7)

1.000**

HEM (Yes), n (%)

13 (9)

5 (10.0)

8 (8.4)

0.763**

ART (Yes), n (%)

32 (22.1)

12 (24.0)

20 (21.1)

0.845**

NEC (Yes), n (%)

1 (0.7)

0 (0.0)

1 (1.0)

1.000**

SCL (Yes), n (%)

15 (10.3)

4 (8.0)

11 (11.6)

0.727**

AVAS (Moderate and Severe), n (%)

57 (39.3)

21 (42.0)

36 (37.9)

0.762**

ARTER (Moderate and Severe), n (%)

55 (37.9)

28 (56.0)

27 (28.4)

0.002**

AMY (Moderate and Severe), n (%)

66 (45.5)

18 (36.0)

48 (50.5)

0.135**

  1. AD: Alzheimer’s disease. MMSE: Mini-mental state examination. S.D.: standard deviation. *Wilcoxon rank sum test. **Chi square/Fisher’s exact test. VASC: Is ischemic, hemorrhagic or vascular pathology present? LINF: Are one or more large artery cerebral infarcts present? MICRO: Are one or more cortical microinfarcts (including “granular atrophy”) present? LAC: Are one or more lacunes (small artery infarcts and/or hemorrhages) present? HEM: Are single or multiple hemorrhages present? ART: Is subcortical arteriosclerotic leukoencephalopathy present? NEC: Is cortical laminar necrosis present? SCL: Is medial temporal lobe sclerosis (including hippocampal sclerosis) present? AVAS: Is atherosclerotic vascular pathology (of the circle of Willis) present? ARTER: Is arteriosclerosis (small parenchymal arteriolar disease) present? AMY: Is amyloid angiopathy present?