Table 1 Characteristics of the study population
Variable | All (N = 2,198) |
|---|---|
URRBMI | Â |
 Not insured, n (%) | 399 (18.15) |
 Insured, n (%) | 1,799 (81.85) |
Age | Â |
 45–64, n (%) | 1,388 (63.15) |
 ≥ 65, n (%) | 810 (36.85) |
Gender | Â |
 Female, n (%) | 1,171 (53.28) |
 Male, n (%) | 1,027 (46.72) |
Marital status | Â |
 Single, divorced, or widowed, n (%) | 316 (14.38) |
 Married, n (%) | 1,882 (85.62) |
Residency area | Â |
 Rural areas, n (%) | 1,777 (80.85) |
 Urban areas, n (%) | 421 (19.15) |
Education status | Â |
 Illiterate, n (%) | 474 (21.57) |
 Literate, n (%) | 1,724 (78.43) |
Household income (RMB) | Â |
 Mean (SD) | 26,874.71 (51,803.57) |
Drinking | Â |
 No, n (%) | 1,435 (65.29) |
 Yes, n (%) | 763 (34.71) |
Sleeping time (Hour) | Â |
 Mean (SD) | 6.36 (1.96) |
Friend interaction | Â |
 No, n (%) | 1,452 (66.06) |
 Yes, n (%) | 746 (33.94) |