Table 3.
Trends in prevalence of overweight, general obesity and abdominal obesity among Chinese Adults: the CHNS 1993–2009 (using WHO criteria for Chinese)
| 1993 | 1997 | 2000 | 2004 | 2006 | 2009 | p for tenda | Δb | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| n | % (SE) | n | % (SE) | n | % (SE) | n | % (SE) | n | % (SE) | n | % (SE) | |||
| Overweight | ||||||||||||||
| Total | 7760 | 9.4 (0.3) | 8354 | 11.3 (0.3) | 9333 | 13.8 (0.4) | 8983 | 14.9 (0.4) | 8826 | 15.4 (0.4) | 9365 | 15.7 (0.4) | <0.001 | 6.3 |
| Men | ||||||||||||||
| Overall | 3678 | 8.0 (0.4) | 4048 | 10.4 (0.5) | 4443 | 13.7 (0.5) | 4263 | 15.0 (0.5) | 4147 | 16.5 (0.6) | 4420 | 17.1 (0.6) | <0.001 | 9.1 |
| Age (years) | ||||||||||||||
| 18–39 | 1823 | 6.3 (0.6) | 1839 | 8.4 (0.6) | 1844 | 11.7 (0.7) | 1391 | 12.9 (0.9) | 1197 | 14.6 (1.0) | 1177 | 14.7 (1.0) | <0.001 | 8.4 |
| 40–59 | 1269 | 10.6 (0.9) | 1506 | 12.9 (0.9) | 1776 | 17.0 (0.9) | 1911 | 17.8 (0.9) | 1931 | 19.5 (0.9) | 2049 | 20.3 (0.9) | <0.001 | 9.7 |
| ≥60 | 586 | 9.2 (1.2) | 703 | 12.8 (1.3) | 823 | 14.5 (1.2) | 961 | 17.0 (1.2) | 1019 | 17.3 (1.2) | 1194 | 19.1 (1.1) | <0.001 | 9.9 |
| Region | ||||||||||||||
| Urban | 1152 | 10.7 (0.9) | 1421 | 13.0 (0.9) | 1506 | 16.0 (0.9) | 1489 | 16.2 (1.0) | 1408 | 16.4 (1.0) | 1450 | 17.5 (1.0) | <0.001 | 6.8 |
| Rural | 2526 | 6.8 (0.5) | 2627 | 8.9 (0.6) | 2937 | 12.5 (0.6) | 2774 | 14.1 (0.7) | 2739 | 16.4 (0.7) | 2970 | 16.9 (0.7) | <0.001 | 10.1 |
| Women | ||||||||||||||
| Overall | 4082 | 10.7 (0.5) | 4306 | 12.1 (0.5) | 4890 | 13.9 (0.5) | 4720 | 14.9 (0.5) | 4679 | 14.4 (0.5) | 4945 | 14.4 (0.5) | <0.001 | 3.7 |
| Age (years) | ||||||||||||||
| 18–39 | 2063 | 7.4 (0.6) | 1881 | 9.5 (0.7) | 1973 | 10.9 (0.7) | 1501 | 11.3 (0.8) | 1324 | 11.2 (0.9) | 1289 | 10.3 (0.8) | <0.001 | 2.9 |
| 40–59 | 1390 | 15.6 (1.0) | 1634 | 16.1 (0.9) | 1967 | 19.7 (0.9) | 2147 | 21.1 (0.9) | 2179 | 19.9 (0.9) | 2311 | 20.5 (0.8) | <0.001 | 4.9 |
| ≥60 | 629 | 12.9 (1.3) | 791 | 13.3 (1.2) | 950 | 12.9 (1.1) | 1072 | 15.6 (1.1) | 1176 | 15.4 (1.1) | 1345 | 17.2 (1.0) | <0.001 | 4.3 |
| Region | ||||||||||||||
| Urban | 1269 | 13.4 (1.0) | 1553 | 13.7 (0.9) | 1670 | 15.6 (0.9) | 1664 | 16.3 (0.9) | 1598 | 13.1 (0.8) | 1652 | 13.3 (0.8) | 0.056 | −0.1 |
| Rural | 2813 | 9.5 (0.6) | 2753 | 11.0 (0.6) | 3220 | 12.9 (0.6) | 3056 | 14.1 (0.6) | 3081 | 15.0 (0.6) | 3293 | 14.9 (0.6) | <0.001 | 5.4 |
| General obesity | ||||||||||||||
| Total | 7760 | 4.0 (0.2) | 8354 | 6.2 (0.3) | 9333 | 8.0 (0.3) | 8983 | 8.7 (0.3) | 8826 | 9.2 (0.3) | 9365 | 10.7 (0.3) | <0.001 | 6.7 |
| Men | ||||||||||||||
| Overall | 3678 | 2.9 (0.3) | 4048 | 5.5 (0.4) | 4443 | 7.2 (0.4) | 4263 | 8.2 (0.4) | 4147 | 9.4 (0.5) | 4420 | 11.4 (0.5) | <0.001 | 8.5 |
| Age (years) | ||||||||||||||
| 18–39 | 1823 | 1.9 (0.3) | 1839 | 4.1 (0.5) | 1844 | 6.8 (0.6) | 1391 | 6.9 (0.7) | 1197 | 9.4 (0.8) | 1177 | 11.8 (0.9) | <0.001 | 9.9 |
| 40–59 | 1269 | 3.7 (0.5) | 1506 | 6.2 (0.6) | 1776 | 7.5 (0.6) | 1911 | 10.0 (0.7) | 1931 | 10.0 (0.7) | 2049 | 12.2 (0.7) | <0.001 | 8.5 |
| ≥60 | 586 | 4.9 (0.9) | 703 | 9.5 (1.1) | 823 | 8.5 (1.0) | 961 | 9.2 (0.9) | 1019 | 8.1 (0.9) | 1194 | 7.8 (0.8) | 0.045 | 2.9 |
| Region | ||||||||||||||
| Urban | 1152 | 4.2 (0.6) | 1421 | 7.7 (0.7) | 1506 | 8.9 (0.7) | 1489 | 9.2 (0.7) | 1408 | 9.5 (0.8) | 1450 | 12.1 (0.9) | <0.001 | 7.9 |
| Rural | 2526 | 2.2 (0.3) | 2627 | 4.3 (0.4) | 2937 | 6.3 (0.4) | 2774 | 7.6 (0.5) | 2739 | 9.2 (0.6) | 2970 | 10.9 (0.6) | <0.001 | 8.7 |
| Women | ||||||||||||||
| Overall | 4082 | 5.0 (0.3) | 4306 | 6.7 (0.4) | 4890 | 8.6 (0.4) | 4720 | 9.2 (0.4) | 4679 | 9.0 (0.4) | 4945 | 10.1 (0.4) | <0.001 | 5.1 |
| Age (years) | ||||||||||||||
| 18–39 | 2063 | 2.8 (0.4) | 1881 | 4.6 (0.5) | 1973 | 5.7 (0.5) | 1501 | 6.3 (0.6) | 1324 | 5.4 (0.6) | 1289 | 7.0 (0.7) | <0.001 | 4.2 |
| 40–59 | 1390 | 7.3 (0.7) | 1634 | 8.9 (0.7) | 1967 | 11.7 (0.7) | 2147 | 12.0 (0.7) | 2179 | 12.8 (0.7) | 2311 | 13.6 (0.7) | <0.001 | 6.3 |
| ≥60 | 629 | 8.4 (1.1) | 791 | 10.4 (1.1) | 950 | 13.2 (1.1) | 1072 | 14.1 (1.1) | 1176 | 14.6 (1.0) | 1345 | 14.9 (1.0) | <0.001 | 6.5 |
| Region | ||||||||||||||
| Urban | 1269 | 5.0 (0.6) | 1553 | 8.0 (0.7) | 1670 | 9.3 (0.7) | 1664 | 9.5 (0.7) | 1598 | 9.3 (0.7) | 1652 | 10.0 (0.7) | <0.001 | 5.0 |
| Rural | 2813 | 4.9 (0.4) | 2753 | 6.0 (0.5) | 3220 | 8.2 (0.5) | 3056 | 8.8 (0.5) | 3081 | 8.7 (0.5) | 3293 | 10.2 (0.5) | <0.001 | 5.3 |
| Abdominal obesity | ||||||||||||||
| Total | 7760 | 18.6 (0.4) | 8354 | 22.6 (0.5) | 9333 | 28.8 (0.5) | 8983 | 31.4 (0.5) | 8826 | 32.8 (0.5) | 9365 | 37.4 (0.5) | <0.001 | 18.8 |
| Men | ||||||||||||||
| Overall | 3678 | 8.5 (0.5) | 4048 | 13.8 (0.5) | 4443 | 19.5 (0.6) | 4263 | 21.6 (0.6) | 4147 | 23.2 (0.7) | 4420 | 27.8 (0.7) | <0.001 | 19.3 |
| Age (years) | ||||||||||||||
| 18–39 | 1823 | 5.0 (0.5) | 1839 | 9.8 (0.7) | 1844 | 16.0 (0.9) | 1391 | 17.4 (1.0) | 1197 | 19.3 (1.1) | 1177 | 23.9 (1.2) | <0.001 | 18.9 |
| 40–59 | 1269 | 11.2 (0.9) | 1506 | 16.4 (1.0) | 1776 | 22.0 (1.0) | 1911 | 26.4 (1.0) | 1931 | 27.9 (1.0) | 2049 | 32.9 (1.0) | <0.001 | 21.7 |
| ≥60 | 586 | 16.4 (1.5) | 703 | 23.5 (1.6) | 823 | 27.8 (1.6) | 961 | 27.4 (1.4) | 1019 | 27.9 (1.4) | 1194 | 32.0 (1.3) | <0.001 | 15.6 |
| Region | ||||||||||||||
| Urban | 1152 | 12.8 (1.0) | 1421 | 17.4 (1.0) | 1506 | 22.3 (1.1) | 1489 | 23.8 (1.1) | 1408 | 23.9 (1.1) | 1450 | 27.9 (1.2) | <0.001 | 15.1 |
| Rural | 2526 | 6.3 (0.5) | 2627 | 11.8 (0.6) | 2937 | 17.8 (0.7) | 2774 | 20.1 (0.8) | 2739 | 22.5 (0.8) | 2970 | 27.7 (0.8) | <0.001 | 21.4 |
| Women | ||||||||||||||
| Overall | 4082 | 27.8 (0.7) | 4306 | 30.8 (0.7) | 4890 | 37.1 (0.7) | 4720 | 40.3 (0.7) | 4679 | 41.4 (0.7) | 4945 | 45.9 (0.7) | <0.001 | 18.1 |
| Age (years) | ||||||||||||||
| 18–39 | 2063 | 16.5 (0.8) | 1881 | 20.3 (0.9) | 1973 | 24.3 (1.0) | 1501 | 27.4 (1.2) | 1324 | 28.9 (1.2) | 1289 | 33.3 (1.3) | <0.001 | 16.8 |
| 40–59 | 1390 | 38.6 (1.3) | 1634 | 41.2 (1.2) | 1967 | 50.7 (1.1) | 2147 | 54.0 (1.1) | 2179 | 54.4 (1.1) | 2311 | 58.6 (1.0) | <0.001 | 20.0 |
| ≥60 | 629 | 47.4 (2.0) | 791 | 47.7 (1.8) | 950 | 56.2 (1.6) | 1072 | 59.1 (1.5) | 1176 | 60.7 (1.4) | 1345 | 66.3 (1.3) | <0.001 | 18.9 |
| Region | ||||||||||||||
| Urban | 1269 | 32.9 (1.3) | 1553 | 33.6 (1.2) | 1670 | 36.9 (1.2) | 1664 | 39.9 (1.2) | 1598 | 41.5 (1.2) | 1652 | 42.9 (1.2) | <0.001 | 10.0 |
| Rural | 2813 | 25.1 (0.8) | 2753 | 28.7 (0.9) | 3220 | 36.6 (0.8) | 3056 | 40.0 (0.9) | 3081 | 41.1 (0.9) | 3293 | 47.1 (0.9) | <0.001 | 22.0 |
a
Linear trends in the prevalence of overweight, general obesity and abdominal obesity were tested using logistic regression model adjusted for sex, age and region.
b
2009–1993
Overweight and general obesity were defined as a BMI from 25 kg/m2 to 27.49 kg/m2 and a BMI ≥ 27.5 kg/m2, respectively. Abdominal obesity was defined as a WC≥90 cm for men and ≥ 80 cm for women.