Table 3. Age-stratified analysis on the associations between childhood socioeconomic status and subjective dementia symptoms.
| Model 1 | Model 2 | Model 3 | Model 4 | |||||
| OR | (95% CI) | OR | (95% CI) | OR | (95% CI) | OR | (95% CI) | |
| 65–74 years | ||||||||
| Childhood SES | ||||||||
| Low | 2.06 | (1.69–2.51) | 1.66 | (1.33–2.08) | 1.60 | (1.27–2.02) | 1.32 | (1.04–1.68) |
| Middle-low | 1.51 | (1.25–1.82) | 1.31 | (1.06–1.61) | 1.30 | (1.05–1.61) | 1.21 | (0.97–1.51) |
| Middle | 0.95 | (0.79–1.15) | 0.87 | (0.71–1.07) | 0.88 | (0.72–1.09) | 0.93 | (0.75–1.15) |
| High/middle-high | 1.00 | 1.00 | 1.00 | 1.00 | ||||
| ≥75 years | ||||||||
| Childhood SES | ||||||||
| Low | 2.30 | (1.99–2.67) | 1.85 | (1.56–2.19) | 1.78 | (1.49–2.12) | 1.46 | (1.21–1.76) |
| Middle-low | 1.81 | (1.59–2.07) | 1.49 | (1.29–1.73) | 1.42 | (1.22–1.66) | 1.24 | (1.06–1.46) |
| Middle | 1.23 | (1.09–1.39) | 1.07 | (0.93–1.23) | 1.06 | (0.92–1.22) | 1.03 | (0.89–1.20) |
| High/middle-high | 1.00 | 1.00 | 1.00 | 1.00 | ||||
CI, confidence interval; OR, odds ratio; SES, socioeconomic status.
Model 1: Adjusted for age, sex, and childhood SES.
Model 2: Addition of years of education, marital status, living alone, and current working status to model 1.
Model 3: Addition of smoking status, regular exercise, and body mass index to model 2.
Model 4: Addition of cancer, heart disease, stroke, hypertension, hyperlipidemia, diabetes mellitus, and depression to model 3.