Table 1 Basic characteristics of respondents in 2011 (n = 11,912)
Variables | Group | Rural (n = 9808) | Urban (n = 2092) | P |
|---|---|---|---|---|
Demographics | ||||
Sex | Male | 4423(45.13) | 1081(51.67) | < 0.001 |
Female | 5377(54.86) | 1011(48.33) | ||
Age (years) | 45–50 | 2477(25.25) | 443(21.18) | < 0.001 |
51–60 | 3825(39.00) | 760(36.32) | ||
61–70 | 2531(25.81) | 615(29.40) | ||
≥71 | 975(9.95) | 274(13.10) | ||
Education | ≤Elementary school | 7302(74.50) | 792(37.93) | < 0.001 |
≥Middle school | 2499(25.50) | 1296(62.07) | ||
Insurance | No | 702(7.20) | 330(15.96) | < 0.001 |
Yes | 9045(92.80) | 1738(84.04) | ||
Household income per capita (CNY) | Low | 2595(27.11) | 297(14.86) | < 0.001 |
Medium | 5072(52.98) | 714(35.72) | ||
High | 1906(19.91) | 988(49.42) | ||
Life style | ||||
Living status | Live with others | 8122(82.81) | 1819(86.95) | < 0.001 |
Live alone | 1686(17.19) | 273(13.05) | ||
Sleeping hours | 7–8 h | 3762(38.36) | 883(42.21) | < 0.001 |
≤6 h | 4576(46.66) | 980(46.85) | ||
> 8 h | 1470(14.98) | 229(10.95) | ||
Smoking status | Yes | 3768(38.53) | 787(37.84) | 0.554 |
No | 6011(61.47) | 1293(62.16) | ||
Alcohol consumption | Yes | 3215(32.89) | 693(33.32) | 0.709 |
No | 6559(67.11) | 1387(66.68) | ||
Health status | ||||
Disability | No | 8035(82.21) | 1815(87.22) | < 0.001 |
Yes | 1739(17.79) | 266(12.78) | ||
Chronic disease | No | 3205(33.14) | 615(29.70) | 0.002 |
Yes | 6467(66.86) | 1456(70.30) | ||