Table 2 Demographic information of participants (N = 10,746)

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)