Cumulative Effect of Depression on Dementia Risk

Table 1

Characteristics of subjects with and without complete information on depression.

	Subjects with information (𝑛=1,807)	Subjects without information (𝑛=3,458)	𝑃 value
Age (mean, SD)	74.3 (7.0)	74.4 (7.0)	NS
Women	59.3	56.7	NS
Education			<0.001
Illiterate	22.4	8.9
Can read and write	44.9	37.4
Primary school	22.9	38.1
≥secondary school	9.8	15.5
Hypertension	52.2	50.5	NS
Diabetes	19.8	15.1	<0.001
Heart disease	9.7	10.3	NS
Hypercholesterolemia	32.7	27.0	<0.001
Tobacco use	35.7	40.1	<0.01
Stroke	5.3	4.6	NS
Dementia at baseline	6.7	5.3	<0.05
Dementia aetiology
AD	71.4	72.4	NS
DVC	13.4	17.2
Other aetiology	15.1	10.4

Data represent % unless “mean, SD” is indicated.
AD: Alzheimer's disease (without vascular component); DVC: dementia with vascular component; NS: statistically not significant (𝑃>0.05).