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Table 1 The prevalence of excess body weight, obesity, underweight and severe wasting for boys and girls and their POR in different age groups in 2014, (% or POR, 95% CI)

From: Prevalence of excess body weight and underweight among 26 Chinese ethnic minority children and adolescents in 2014: a cross-sectional observational study

Classification Age group/year Total
7–9 10–12 13–15 16–18
Both sexes (%,95% CI)
N (%) 20,139(24.9) 20,175(25.0) 20,431(25.3) 20,076(24.8) 80,821
Excess body weighta 11.6(11.1,12.0) 12.4(11.9,12.8) 11.8(11.4,12.2) 12.1(11.7,12.6) 12.0(11.7,12.2)
 Obesity 4.5(4.2,4.8) 5.0(4.7,5.3) 4.3(4.0,4.6) 3.8(3.6,4.1) 4.4(4.2,4.5)
Underweightb 16.5(16.0,17.0) 14.2(13.7,14.7) 12.2(11.7,12.6) 14.9(14.4,15.4) 14.5(14.2,14.7)
Severe wasting 6.6(6.2,6.9) 3.9(3.6,4.1) 2.7(2.5,2.9) 3.4(3.1,3.6) 4.1(4.0,4.3)
Boys (%,95% CI)
N (%) 10,079(25.0) 10,062(25.0) 10,183(25.3) 9999(24.8) 40,323
Excess body weighta 12.0(11.3,12.6) 12.4(11.7,13.0) 9.3(8.7,9.8) 10.0(9.4,10.6) 10.9(10.6,11.2)
 Obesity 5.2(4.8,5.6) 5.7(5.2,6.1) 4.0(3.6,4.4) 3.4(3.0,3.8) 4.6(4.4,4.8)
Underweightb 16.8(16.1,17.5) 16.9(16.2,17.7) 15.6(14.9,16.3) 16.5(15.8,17.2) 16.5(16.1,16.8)
Severe wasting 7.1(6.6,7.6) 4.5(4.1,5.0) 3.1(2.7,3.4) 3.1(2.8,3.5) 4.5(4.3,4.7)
Girls (%,95% CI)
N (%) 10,060(24.8) 10,113(25.0) 10,248(25.3) 10,077(24.9) 40,498
Excess body weighta 11.2(10.5,11.7) 12.5(11.8,13.1) 14.4(13.7,15.0) 14.2(13.6,14.9) 13.0(12.7,13.4)
 Obesity 3.8(3.4,4.1) 4.3(3.9,4.7) 4.6(4.2,5.0) 4.2(3.9,4.6) 4.2(4.0,4.4)
Underweightb 16.2(15.5,16.9) 11.5(10.9,12.2) 8.8(8.3,9.4) 13.4(12.7,14.1) 12.5(12.1,12.8)
Severe wasting 6.0(5.6,6.5) 3.2(2.9,3.6) 2.3(2.0,2.6) 3.6(3.3,4.0) 3.8(3.6,4.0)
POR* (95%CI)
Excess body weighta 1.09(1.00,1.18) 0.99(0.91,1.08) 0.61(0.56,0.66) 0.67(0.61,0.73) 0.81(0.78,0.85)
 Obesity 1.40(1.22,1.60) 1.35(1.19,1.53) 0.87(0.76,0.99) 0.79(0.69,0.92) 1.09(1.02,1.16)
Underweightb 1.04(0.97,1.12) 1.56(1.44,1.69) 1.92(1.76,2.09) 1.28(1.18,1.38) 1.38(1.33,1.44)
 Severe wasting 1.18(1.06,1.32) 1.44(1.24,1.66) 1.33(1.12,1.58) 0.85(0.73,1.00) 1.18(1.10,1.27)
  1. *POR (prevalence odds ratios) was calculated for boys versus girls in different BMI groups
  2. aexcess body weight involves obesity
  3. bunderweight involves severe wasting