Table 2. Associations between socio-demographic variables and cognitive impairment in adults aged 60-64 living in a rural area, Korea.
| Characteristic | Univariate analysis | Multivariate analysis |
| Odds ratio (95% CI) | Odds ratio (95% CI) | |
| Gender | ||
| Male | 1 | 1 |
| Female | 2.71(2.19–3.35)* | 1.72(1.26–2.34)* |
| Marital status | ||
| Married | 1 | 1 |
| Single/widowed/divorced | 1.77(1.44–2.18)* | 1.17(0.89–1.52) |
| Number of housemates | ||
| 0 | 1 | 1 |
| 1 | 0.85(0.60–1.19) | 1.52(1.01–2.30)* |
| 2 | 0.71(0.49–1.04) | 1.41(0.90–2.19) |
| 3 or more | 0.85(0.60–1.22) | 1.37(0.92–2.04) |
| P-trend | 0.46 | 0.58 |
| Employment status | ||
| Unemployed | 1 | 1 |
| Employed | 0.67(0.55–0.81)* | 0.77(0.63–0.95)* |
| Schooling | ||
| No | 1 | 1 |
| 1–6 years | 0.49(0.40–0.60)* | 0.64(0.52–0.80)* |
| 7–9 years | 0.15(0.09–0.25)* | 0.24(0.14–0.42)* |
| 10 years or more | 0.08(0.04–0.15)* | 0.14(0.07–0.27)* |
| P-trend | <0.01 | <0.01 |
| Smoking | ||
| Currently non-smoker | 1 | 1 |
| Current smoker | 0.71(0.58–0.88)* | 1.02(0.79–1.33) |
| Drinking | ||
| Currently non-drinker | 1 | 1 |
| Current drinker | 0.74(0.60–0.91)* | 1.19(0.92–1.53) |
| Medical insurance | ||
| National Health Insurance | 1 | 1 |
| Medical Aid Program | 1.68(1.01–2.79)* | 1.10(0.64–1.90) |
| GDS-15 | ||
| 1 score increase | 1.12(1.10–1.14)* | 1.08(1.06–1.11)* |
*
P-value<0.05.