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Table 1 The characteristics of CHNS from 1989 to 2011

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

Characteristics 1989 1991 1993 1997 2000 2004 2006 2009 2011
N 5080 8382 8017 8473 9374 9100 9039 9426 12,543
Age
 18–39 4206(82.80) 4395(52.43) 3945(49.21) 3689(43.54) 3773(40.25) 2890(31.76) 2555(28.27) 2425(25.73) 2957(23.57)
 40–59 866(17.05) 2718(32.43) 2786(34.75) 3245(38.30) 3807(40.61) 4125(45.33) 4221(46.70) 4391(46.58) 5896(47.01)
 60–100 8(0.16) 1269(15.14) 1286(16.04) 1539(18.16) 1794(19.14) 2085(22.91) 2263(25.04) 2610(27.69) 3690(29.42)
Sex
 Males 2401(47.26) 4052(48.34) 3867(48.24) 4171(49.23) 4520(48.22) 4348(47.78) 4255(47.07) 4485(47.58) 5890(46.96)
 Females 2679(52.74) 4330(51.66) 4150(51.76) 4302(50.77) 4854(51.78) 4752(52.22) 4784(52.93) 4941(52.42) 6653(53.04)
  1. CHNS China Health and Nutrition Survey