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Table 1 Population characteristics of patients with Alzheimer's disease

From: Factors that influence survival in a probable Alzheimer disease cohort

Variable (n = 641)

Value

Percentage

Range

Age, years

73.0 (8.50)

 

43-93

Female

 

68

 

Race (white versus non-white)

 

87

 

Education, years

14.0 (3.56)

 

0-29

Duration of symptoms before initial visit, years

3.7 (2.29)

 

0.5-13

Follow-up time from baseline to censoring or death, years

3.0 (1.94)

 

0.7-13.4

Total number of follow-up visits to the clinic

2.4 (1.64)

 

2-11

MMSE score

19.5 (6.64)

 

0-30

PSMS score

7.9 (3.05)

 

6-25

Using antipsychotics drugs

221

34.5

 

Using antidementia drugs

554

86.4

 

Pre-progression rate

   

   Slow

192

30.0

 

   Moderate

297

46.3

 

   Fast

152

23.7

 

Experiencing hallucination

291

45.4

 

Experiencing delusions

371

57.9

 
  1. Continuous variables are presented as mean (standard deviation). MMSE, Mini-Mental Status Examination; PSMS, Physical Self-Maintenance Scale.