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Table 5 The prevalence of grade 1, grade 2, and grade 2 and grade 3 combined among the 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 2004 2006 2009 2011 Z P
n %(CI) n %(CI) n %(CI) n %(CI) n %(CI) n %(CI) n %(CI) n %(CI) n %(CI)
Grade 1
 Total 97 1.91 (1.30–2.90) 308 3.67 (3.27–4.08) 308 3.84 (3.42–4.26) 516 6.09 (5.58–6.60) 739 7.88 (7.34–8.43) 825 9.07 (8.48–9.66) 858 9.49 (8.89–10.10) 1009 10.70 (10.08–11.33) 1599 12.75 (12.16–13.33) 29.02 <.0001
 Adjusteda 97 2.08 (1.69–2.47) 308 3.93 (3.51–4.34) 308 3.94 (3.51–4.36) 516 5.99 (5.48–6.49) 739 7.66 (7.13–8.20) 825 8.40 (7.83–8.97) 858 8.81 (8.23–9.40) 1009 10.09 (9.48–10.70) 1599 12.01 (11.44–12.58)   
 Men
  Overall 29 1.21 (0.77–1.64) 123 3.04 (2.51–3.56) 114 2.95 (2.41–3.48) 226 5.42 (4.73–6.11) 310 6.86 (6.12–7.60) 368 8.46 (7.64–9.29) 377 8.86 (8.01–9.71) 456 10.17 (9.28–11.05) 751 12.75 (11.90–13.60) 22.09 <.0001
  Adjusteda 29 1.38 (0.91–1.84) 123 3.24 (2.70–3.79) 114 3.01 (2.47–3.55) 226 5.37 (4.69–6.06) 310 6.81 (6.08–7.55) 368 8.10 (7.29–8.91) 377 8.90 (8.04–9.75) 456 10.58 (9.68–11.48) 751 13.25 (12.38–14.11)   
 Age (years)
  18–39 18 0.91 (0.49–1.33) 33 1.53 (1.02–2.05) 35 1.82 (1.23–2.42) 76 4.03 (3.14–4.91) 119 6.34 (5.23–7.44) 93 6.58 (5.29–7.87) 108 8.86 (7.26–10.45) 132 11.10 (9.32–12.89) 189 13.96 (12.11–15.80) 19.17 <.0001
  40–59 11 2.55 (1.06–4.04) 55 4.22 (3.13–5.31) 46 3.45 (2.47–4.42) 90 5.77 (4.62–6.93) 127 7.02 (5.84–8.20) 191 9.77 (8.45–11.09) 188 9.46 (8.17–10.75) 237 11.46 (10.09–12.83) 377 13.55 (12.28–14.82) 11.87 <.0001
  60–100 0 0.00 35 5.85 (3.97–7.73) 33 5.37 (3.59–7.16) 60 8.29 (6.28–10.30) 64 7.68 (5.87–9.49) 84 8.57 (6.82–10.32) 81 7.72 (6.11–9.34) 87 7.08 (5.65–8.52) 185 10.55 (9.11–11.98) 3.340 0.0008
 Women
  Overall 68 2.54 (1.94–3.13) 185 4.27 (3.67–4.87) 194 4.67 (4.03–5.32) 290 6.74 (5.99–7.49) 429 8.84 (8.04–9.64) 457 9.62 (8.78–10.46) 481 10.05 (9.20–10.91) 553 11.19 (10.31–12.07) 848 12.75 (11.94–13.55) 19.00 <.0001
  Adjusteda 68 2.74 (2.12–3.36) 185 4.56 (3.94–5.18) 194 4.79 (4.14–5.44) 290 6.55 (5.81–7.28) 429 8.41 (7.63–9.19) 457 8.67 (7.87–9.47) 481 8.73 (7.93–9.53) 553 9.60 (8.78–10.42) 848 11.03 (10.27–11.78)   
 Age (years)
  18–39 47 2.10 (1.51–2.70) 44 1.96 (1.39–2.53) 55 2.71 (2.01–3.42) 71 3.94 (3.04–4.84) 95 5.01 (4.03–6.00) 78 5.28 (4.14–6.42) 64 4.79 (3.65–5.94) 69 5.58 (4.30–6.86) 108 6.74 (5.51–7.96) 9.24 <.0001
  40–59 21 4.83 (2.81–6.84) 98 6.93 (5.61–8.25) 93 6.41 (5.15–7.67) 144 8.54 (7.21–9.88) 223 11.16 (9.78–12.54) 242 11.15 (9.83–12.48) 265 11.86 (10.52–13.20) 295 12.70 (11.35–14.05) 458 14.71 (13.46–15.95) 9.60 <.0001
  60–100 0 0.00 43 6.41 (4.56–8.26) 46 6.85 (4.94–8.75) 75 9.2 (7.22–11.19) 111 11.55 (9.53–13.57) 137 12.40 (10.46–14.34) 152 12.52 (10.66–14.38) 189 13.68 (11.86–15.49) 282 14.57 (12.99–16.14) 6.52 <.0001
Grade 2
 Total 3 0.06 (0.00–0.13) 21 0.25 (0. 14–0.36) 23 0.29 (0. 17–0.40) 34 0.40 (0. 27–0.54) 60 0.64 (0. 48–0.80) 69 0.76 (0. 58–0.94) 75 0.83 (0. 64–1.02) 88 0.93 (0. 74–1.13) 163 1.30 (1.10–1.50) 10.07 <.0001
 Adjusteda 3 0.06 (0.01–0.13) 21 0.28 (0.17–0.40) 23 0.30 (0.18–0.42) 34 0.39 (0.26–0.52) 60 0.61 (0.45–0.77) 69 0.72 (0.54–0.89) 75 0.81 (0.62–0.99) 88 0.88 (0.69–1.07) 163 1.24 (1.05–1.43)   
 Men
  Overall 1 0.04 (0.00–0.12) 1 0.02 (0.00–0.07) 4 0.10 (0.00–0.20) 12 0.29 (0.13–0.45) 23 0.51 (0.30–0.72) 21 0.48 (0.28–0.69) 22 0.52 (0.30–0.73) 38 0.85 (0.58–1.12) 58 0.98 (0.73–1.24) 7.40 <.0001
  Adjusteda 1 0.09 (0.00–0.20) 1 0.03 (0.00–0.08) 4 0.11 (0.00–0.21) 12 0.28 (0.12–0.44) 23 0.49 (0.28–0.69) 21 0.50 (0.29–0.71) 22 0.57 (0.35–0.80) 38 0.84 (0.58–1.11) 58 1.03 (0.77–1.29)   
 Age (years)
  18–39 0 0.00 0 0.00 1 0.05 (0.00–0.15) 1 0.05 (0.00–0.16) 5 0.27 (0.03–0.50) 8 0.57 (0.17–0.96) 9 0.74 (0.26–1.22) 10 0.84 (0.32–1.36) 15 1.11 (0.55–1.67) 6.10 <.0001
  40–59 1 0.23 (0.00–0.69) 0 0.00 3 0.22 (0.00–0.48) 4 0.26 (0.01–0.51) 11 0.61 (0.25–0.97) 8 0.41 (0.13–0.69) 9 0.45 (0.16–0.75) 17 0.82 (0.43–1.21) 29 1.04 (0.67–1.42) 4.51 <.0001
  60–100 0 0.00 1 0.17 (0.00–0.49) 0 0.00 7 0.97 (0.25–1.68) 7 0.84 (0.22–1.46) 5 0.51 (0.06–0.96) 4 0.38 (0.01–0.75) 11 0.90 (0.37–1.42) 14 0.80 (0.38–1.21) 1.86 0.0629
 Women
  Overall 2 0.07 (0.00–0.18) 20 0.46 (0.26–0.66) 19 0.46 (0.25–0.66) 22 0.51 (0.30–0.72) 37 0.76 (0.52–1.01) 48 1.01 (0.73–1.29) 53 1.11 (0.81–1.40) 50 1.01 (0.73–1.29) 105 1.58 (1.28–1.88) 6.94 <.0001
  Adjusteda 2 0.04 (0.00–0.12) 20 0.52 (0.30–0.73) 19 0.49 (0.27–0.70) 22 0.50 (0.29–0.71) 37 0.72 (0.48–0.96) 48 0.92 (0.65–1.19) 53 1.02 (0.73–1.30) 50 0.92 (0.65–1.19) 105 1.43 (1.14–1.71)   
 Age (years)
  18–39 2 0.09 (0.00–0.21) 0 0.00 0 0.00 6 0.33 (0.07–0.6) 8 0.42 (0.13–0.71) 9 0.61 (0.21–1.01) 11 0.82 (0.34–1.31) 9 0.73 (0.25–1.20) 17 1.06 (0.56–1.56) 6.22 <.0001
  40–59 0 0.00 12 0.85 (0.37–1.33) 11 0.76 (0.31–1.20) 7 0.42 (0.11–0.72) 15 0.75 (0.37–1.13) 20 0.92 (0.52–1.32) 18 0.81 (0.44–1.18) 22 0.95 (0.55–1.34) 54 1.73 (1.28–2.19) 3.33 0.0009
  60–100 0 0.00 8 1.19 (0.37–2.01) 8 1.19 (0.37–2.01) 9 1.10 (0.39–1.82) 14 1.46 (0.70–2.21) 19 1.72 (0.95–2.49) 24 1.98 (1.19–2.76) 19 1.37 (0.76–1.99) 34 1.76 (1.17–2.34) 1.25 0.2130
Grade 2 and 3
 Total 3 0.06 (0.00–0.13) 23 0.27 (0.16–0.39) 25 0.31 (0.19–0.43) 37 0.44 (0.30–0.58) 64 0.68 (0.52–0.85) 76 0.84 (0.65–1.02) 82 0.91 (0.71–1.10) 93 0.99 (0.79–1.19) 256 2.04 (1.79–2.29) 12.59 <.0001
 Adjusteda 3 0.06 (0.00–0.13) 23 0.31 (0.19–0.43) 25 0.33 (0.20–0.45) 37 0.42 (0.28–0.56) 64 0.65 (0.49–0.81) 76 0.80 (0.61–0.98) 82 0.87 (0.68–1.06) 93 0.93 (0.74–1.12) 256 1.98 (1.73–2.22)   
 Men
  Overall 1 0.04 (0.00–0.12) 2 0.05 (0.00–0.12) 5 0.13 (0.02–0.24) 12 0.29 (0.13–0.45) 24 0.53 (0.32–0.74) 21 0.48 (0.28–0.69) 24 0.56 (0.34–0.79) 39 0.87 (0.60–1.14) 102 1.73 (1.40–2.06) 9.63 <.0001
  Adjusteda 1 0.09 (0.00–0.20) 2 0.05 (0.00–0.13) 5 0.13 (0.02–0.25) 12 0.28 (0.12–0.44) 24 0.51 (0.30–0.71) 21 0.50 (0.29–0.71) 24 0.63 (0.39–0.86) 39 0.86 (0.59–1.13) 102 1.74 (1.41–2.07)   
 Ag e (years)
  18–39 0 0.00 0 0.00 1 0.05 (0.00–0.15) 1 0.05 (0.00–0.16) 5 0.27 (0.03–0.50) 8 0.57 (0.17–0.96) 10 0.82 (0.31–1.33) 10 0.84 (0.32–1.36) 23 1.70 (1.01–2.39) 6.45 <.0001
  40–59 1 0.23 (0.00–0.69) 0 0.00 3 0.22 (0.00–0.48) 4 0.26 (0.01–0.51) 11 0.61 (0.25–0.97) 8 0.41 (0.13–0.69) 9 0.45 (0.16–0.75) 18 0.87 (0.47–1.27) 53 1.91 (1.40–2.41) 5.80 <.0001
  60–100 0 0.00 2 0.33 (0.00–0.80) 1 0.16 (0.00–0.48) 7 0.97 (0.25–1.68) 8 0.96 (0.30–1.62) 5 0.51 (0.06–0.96) 5 0.48 (0.06–0.89) 11 0.90 (0.37–1.42) 26 1.48 (0.92–2.05) 2.46 0.0139
 Women
  Overall 2 0.07 (0.00–0.18) 21 0.48 (0.28–0.69) 20 0.48 (0.27–0.69) 25 0.58 (0.35–0.81) 40 0.82 (0.57–1.08) 55 1.16 (0.85–1.46) 58 1.21 (0.90–1.52) 54 1.09 (0.80–1.38) 154 2.31 (1.95–2.68) 8.84 <.0001
  Adjusteda 2 0.04 (0.00–0.12) 21 0.54 (0.33–0.76) 20 0.51 (0.29–0.73) 25 0.56 (0.34–0.78) 40 0.78 (0.53–1.03) 55 1.07 (0.78–1.37) 58 1.10 (0.80–1.39) 54 1.00 (0.72–1.27) 154 2.19 (1.84–2.54)   
 Age (years)
  18–39 2 0.09 (0.00–0.21) 0 0.00 0 0.00 6 0.33 (0.07–0.60) 9 0.47 (0.17–0.78) 12 0.81 (0.35–1.27) 11 0.82 (0.34–1.31) 10 0.81 (0.31–1.31) 30 1.87 (1.21–2.53) 7.35 <.0001
  40–59 0 0.00 13 0.92 (0.42–1.42) 12 0.83 (0.36–1.29) 8 0.47 (0.15–0.80) 15 0.75 (0.37–1.13) 21 0.97 (0.56–1.38) 21 0.94 (0.54–1.34) 22 0.95 (0.55–1.34) 78 2.50 (1.96–3.05) 4.51 <.0001
  60–100 0 0.00 8 1.19 (0.37–2.01) 8 1.19 (0.37–2.01) 11 1.35 (0.56–2.14) 16 1.66 (0.86–2.47) 22 1.99 (1.17–2.81) 26 2.14 (1.33–2.96) 22 1.59 (0.93–2.25) 46 2.38 (1.70–3.05) 2.18 0.0296
  1. aAdjusted by the direct method to the year 2010 Census population using the age groups 18–39 years, 40–59 years, and 60–100 years
  2. CHNS China Health and Nutrition Survey