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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