Table 1.
General characteristic of Chinese adult population from the 1993–2011 CHNSa
| Survey Year | |||||||
|---|---|---|---|---|---|---|---|
| 1993 | 1997 | 2000 | 2004 | 2006 | 2009 | 2011 | |
| Participated | 7810 | 4498 | 5918 | 6408 | 6623 | 6319 | 7319 |
| New participated | – | 3865 | 3421 | 2574 | 2239 | 3067 | 5298 |
| With drowal /Died | – | 3312 | 2445 | 2931 | 2359 | 2543 | 2067 |
| Age | 42.1(15.7) | 43.7(15.8) | 45.2(15.4) | 48.2(15.3) | 49.5(15.2) | 50.4(15.4) | 51.3(15.2) |
| Genderb | 47.4 | 48.5 | 47.7 | 47.5 | 46.9 | 47.3 | 46.7 |
| Ethnicyc | 95.4 | 94.5 | 95.1 | 95.2 | 95.7 | 95.7 | 97.2 |
| Marital statusd | 78.8 | 79.0 | 80.7 | 82.6 | 83.9 | 84.0 | 84.5 |
| Education years | 15.9(9.7) | 16.4(9.5) | 17.5(9.2) | 18.8(8.8) | 18.8(9.4) | 19.1(9.0) | 20.6(8.9) |
| Household income e | 3481(3044) | 4197(3561) | 5626(5767) | 7473(7692) | 8838(11971) | 12,421(15667) | 15,521(16641) |
| Community urbanicityf | 48.3(16.5) | 52.3(18.0) | 59.3(18.4) | 63.1(20.3) | 65.0(20.4) | 67.5(19.4) | 73.2(19.2) |
| Abdominal obesity | 45.1 | 46.9 | 49.1 | 55.1 | 57.2 | 59.4 | 63.4 |
aValues presented as numbers for arbitrary values and as mean ± SD or % for other variables
bGender was a dummy variable coded 100 for males and 0 for females
cEthnicity/race was a dummy variable coded 100 for ethnic Han and 0 for other minorities
dMarital status was a dummy variable coded 100 for Married and 0 for others
ePer capita net annual household income was calculated at the household level for each survey year and inflated to 2011
fCommunity urbanicity was measured at the community level on a 12-component continuous scale ranging from 0 to 120 with higher values corresponding to higher levels of urbanicity