Final regression model for dementia prevalence at baseline.
Variable
All dementia
Dementia due to AD
OR (95% CI)
value
OR (95% CI)
value
Sex (female)
1.45 (0.90–2.35)
NS
1.65 (0.93–2.92)
NS
Age
2.40 (2.02–2.85)
<0.001
1.20 (1.16–1.24)
<0.001
Education
Illiterate
3.06 (1.21–7.77)
<0.05
2.38 (0.79–7.15)
NS
Can read and write
1.38 (0.54–3.53)
NS
1.13 (0.37–3.45)
NS
Primary school
1.63 (0.60–2.41)
NS
1.47 (0.47–4.66)
NS
≥secondary school
1 (reference)
1 (reference)
Depression
nD
1 (reference)
1 (reference)
pD
1.52 (0.54–4.31)
NS
0.45 (0.06–3.40)
NS
prD
1.84 (1.01–3.35)
<0.05
1.98 (0.98–3.99)
NS
prpD
2.73 (1.08–6.87)
<0.05
3.98 (1.48–10.71)
<0.005
Hypertension
0.63 (0.41–0.96)
<0.05
0.64 (0.39–1.06)
NS
Stroke
4.11 (2.14–7.88)
<0.001
0.20 (0.02–1.60)
NS
Fully adjusted model. The variables that did not enter or did not remain in the model were diabetes, heart disease, and hypercholesterolemia. AD: Alzheimer's disease (without vascular component); nD: never depression; pD: past depression; prD: present depression; prpD: present and past depression; NS: statistically not significant ().
