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Demographic information of participants (N = 10,746)
| n (%) / Mean ± SD | |
|---|---|
| Age | 69.10 ± 7.15 |
| Gender | |
| - Male | 5,232 (48.7) |
| - Female | 5,514 (51.3) |
| Residential status | |
| - Family house | 10,528 (98) |
| - Nursing home | 47 (0.4) |
| - Hospital | 12 (0.1) |
| - Other | 159 (1.5) |
| Living in rural areas or not | |
| - Rural areas | 7,864 (73.2) |
| - Non-rural areas | 2,882 (26.8) |
| Marital status | |
| - Married | 8,342 (77.6) |
| - Divorced/separated | 134 (1.2) |
| - Widower/widowed | 2,196 (20.4) |
| - Never married | 74 (0.7) |
