Table 5.
Factors Associated with Cognitive Impairment
| Odds ratio (95% CI) | |||||
|---|---|---|---|---|---|
| Factors | Cognitive impairment (%) | Unadjusted | p | Adjusteda | p |
| Age (each 5-year increase) | 1.7 (1.4–1.9) | <0.001 | 1.6 (1.4–1.9) | <0.001 | |
| Sex | |||||
| Men | 94/1486 (6.3) | 1.0 (reference) | 1.0 (reference) | ||
| Women | 66/1332 (5.0) | 0.8 (0.6–1.1) | 0.117 | 0.7 (0.5–1.0) | 0.039 |
| Length of education ≤12 years | |||||
| No | 22/646 (3.4) | 1.0 (reference) | 1.0 (reference) | ||
| Yes | 138/2172 (6.4) | 1.9 (1.2–3.0) | 0.005 | 2.0 (1.2–3.1) | 0.005 |
| History of stroke | |||||
| No | 152/2646 (5.7) | 1.0 (reference) | 1.0 (reference) | ||
| Yes | 8/172 (4.7) | 0.8 (0.4–1.5) | 0.448 | 1.0 (0.5–1.8) | 0.956 |
| Mild visual impairment | |||||
| No | 135/2631 (5.1) | 1.0 (reference) | 1.0 (reference) | ||
| Yes | 25/187 (13.3) | 2.9 (1.8–4.5) | <0.001 | 2.4 (1.5–3.8) | <0.001 |
a
Multivariate regression model, adjusting for age, sex, length of education, and history of stroke.