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Table 2 The distribution of body mass index and waist circumference among Chinese adults from the CHNS: 1989–2011

From: The prevalence and increasing trends of overweight, general obesity, and abdominal obesity among Chinese adults: a repeated cross-sectional study

Indicators 1989 1991 1993 1997 2000 2003 2006 2009 2011 Z P
n M (Q) n M (Q) n M (Q) n M (Q) n M (Q) n M (Q) n M (Q) n M (Q) n M (Q)
BMI (kg/m2)
 Total 5080 21.20(3.06) 8382 21.20(3.58) 8017 21.40(3.62) 8473 21.80(4.04) 9374 22.40(4.36) 9100 22.60(4.53) 9039 22.80(4.47) 9426 23.04(4.63) 12,543 23.50(4.74) 61.74 <.0001
 Men
  Overall 2401 21.01(2.83) 4052 21.05(3.26) 3867 21.30(3.26) 4171 21.73(3.77) 4520 22.31(4.26) 4348 22.67(4.36) 4255 22.84(4.43) 4485 23.09(4.53) 5890 23.66(4.59) 47.09 <.0001
 Age (years)
  18–39 1969 20.91(2.73) 2150 20.87(2.90) 1918 21.05(2.93) 1888 21.47(3.34) 1878 21.97(3.90) 1413 22.27(4.13) 1219 22.50(4.19) 1189 22.57(4.86) 1354 23.39(5.15) 33.19 <.0001
  40–59 431 21.55(3.28) 1304 21.46(3.54) 1335 21.72(3.50) 1559 22.10(3.93) 1809 22.71(4.21) 1955 23.05(4.21) 1987 23.18(4.18) 2068 23.53(4.35) 2782 24.00(4.33) 26.43 <.0001
  60–100 1 22.96(0.00) 598 21.09(4.09) 614 21.21(4.08) 724 21.77(4.74) 833 22.23(4.86) 980 22.44(4.91) 1049 22.49(4.89) 1228 22.80(4.64) 1754 23.24(4.72) 11.12 <.0001
 Women
  Overall 2679 21.48(3.30) 4330 21.44(3.93) 4150 21.58(4.07) 4302 22.02(4.23) 4854 22.61(4.45) 4752 22.74(4.72) 4784 22.82(4.52) 4941 22.99(4.72) 6653 23.38(4.86) 40.47 <.0001
Age (years)
  18–39 2237 21.37(3.17) 2245 21.14(3.26) 2027 21.19(3.44) 1801 21.47(3.47) 1895 21.76(3.78) 1477 21.69(3.82) 1336 21.64(3.88) 1236 21.55(4.29) 1603 21.72(4.07) 15.49 <.0001
  40–59 435 22.07(3.88) 1414 22.04(4.52) 1451 22.31(4.42) 1686 22.73(4.41) 1998 23.48(4.30) 2170 23.42(4.45) 2234 23.41(4.40) 2323 23.61(4.38) 3114 24.03(4.56) 21.03 <.0001
  60–100 7 20.08(3.63) 671 21.27(5.05) 672 21.62(5.09) 815 22.03(5.33) 961 22.48(5.22) 1105 22.83(5.22) 1214 23.10(5.08) 1382 23.20(5.15) 1936 23.57(4.98) 11.12 <.0001
WC (cm)
 Total 8017 75.00(11.00) 8473 76.00(12.00) 9374 78.00(14.00) 9100 80.00(14.00) 9039 80.30(14.00) 9426 82.00(15.00) 12,543 83.50(14.80) 70.59 <.0001
 Men
 Overall 3867 75.00(12.00) 4171 78.00(13.00) 4520 80.00(13.00) 4348 82.00(14.00) 4255 82.40(14.00) 4485 84.00(14.00) 5890 86.00(13.80) 55.64 <.0001
 Age (years)
  18–39 1918 74.00(9.50) 1888 76.00(11.00) 1888 78.00(12.00) 1413 80.00(13.00) 1219 80.50(13.00) 1189 81.50(15.10) 1354 84.00(15.60) 34.70 <.0001
  40–59 1335 77.00(11.00) 1559 79.00(13.00) 1559 81.00(13.00) 1955 83.00(13.00) 1987 83.60(13.00) 2068 85.00(13.20) 2782 87.00(13.00) 33.55 <.0001
  60–100 614 78.00(13.00) 724 80.00(16.00) 724 82.00(15.00) 980 82.50(14.90) 1049 83.00(15.00) 1228 84.50(14.60) 1754 86.00(13.90) 15.56 <.0001
 Women
  Overall 4150 74.00(12.00) 4302 75.00(12.00) 4854 77.00(14.00) 4752 78.50(14.00) 4784 79.00(13.00) 4941 80.00(14.00) 6653 81.00(14.60) 45.51 <.0001
 Age (years)
  18–39 2027 72.00(9.00) 1801 72.00(10.00) 1895 74.00(11.00) 1477 74.00(11.00) 1477 74.00(10.50) 1477 75.00(13.00) 1603 76.00(12.80) 20.57 <.0001
  40–59 1451 76.00(13.00) 1686 77.00(12.00) 1998 80.00(13.00) 2170 80.00(13.00) 2170 80.00(13.00) 2170 81.00(12.80) 3114 82.00(13.30) 23.96 <.0001
  60–100 672 78.00(15.00) 815 79.00(16.00) 961 81.00(15.00) 1105 82.00(16.00) 1105 82.00(15.00) 1105 84.00(14.20) 1936 84.50(14.30) 14.42 <.0001
  1. CHNS China Health and Nutrition Survey; BMI body mass index; WC waist circumference