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Table 1 Characteristics of the study population according to BMI category in boys and girls

From: Prevalence of metabolic syndrome in a cohort of Chinese schoolchildren: comparison of two definitions and assessment of adipokines as components by factor analysis

 

Boys

Girls

 

Normal weight

Overweight

Obese

Normal weight

Overweight

Obese

N

629

319

769

912

318

426

Age (ys)

11.7 ± 3.1a

12.7 ± 3.1b

11.4 ± 2.9a

12.3 ± 3.1a

12.9 ± 2.9b

11.2 ± 2.9c

Tanner stage

2.1 ± 1.2a

2.6 ± 1.3b

2.1 ± 1.2a

3.1 ± 1.3a

3.8 ± 1.4b

3.1 ± 1.5a

BMI (kg m-2)

17.7 ± 2.4a

23.3 ± 2.7b

26.9 ± 3.6c

18.0 ± 2.4a

23.4 ± 2.3b

25.9 ± 3.8c

WC (cm)

63.3 ± 7.6a

78.2 ± 8.8b

86.1 ± 10.8c

62.1 ± 6.6a

74.0 ± 6.3b

79.5 ± 9.7c

SBP (mm Hg)

103 ± 13a

114 ± 14b

116 ± 13c

101 ± 12a

109 ± 10b

111 ± 11c

DBP (mm Hg)

64 ± 10a

70 ± 10b

72 ± 9c

64 ± 9a

69 ± 8b

71 ± 9c

TC (mmol/L)

4.03 ± 0.84

4.03 ± 0.76

4.11 ± 0.75

4.18 ± 0.86a

4.05 ± 0.77b

4.04 ± 0.73b

TG (mmol/L)#

0.79 ± 0.39a

1.08 ± 0.58b

1.20 ± 0.63c

0.96 ± 0.50a

1.05 ± 0.54b

1.18 ± 0.63c

HDL-C (mmol/L)

1.55 ± 0.36a

1.33 ± 0.32b

1.27 ± 0.26c

1.52 ± 0.30a

1.34 ± 0.26b

1.26 ± 0.26c

LDL-C (mmol/L)

2.40 ± 0.76a

2.52 ± 0.67a

2.65 ± 0.66b

2.56 ± 0.80

2.56 ± 0.70

2.58 ± 0.66

Glucose (mmol/L)

5.12 ± 0.66

5.17 ± 0.47

5.19 ± 0.48

4.96 ± 0.44a

5.15 ± 1.02b

5.11 ± 0.50b

Insulin (mU/L) #

6.2 ± 4.3a

10.6 ± 7.7b

14.8 ± 13.9c

7.3 ± 4.9a

11.6 ± 6.9b

15.4 ± 12.5c

HOMA-IR#

1.42 ± 1.01a

2.50 ± 2.09b

3.52 ± 3.80c

1.65 ± 1.20a

2.67 ± 1.62b

3.57 ± 3.34c

Leptin (ng/ml)#

1.7 ± 2.5a

7.9 ± 9.1b

15.6 ± 12.3c

5.3 ± 5.8a

14.6 ± 10.8b

20.5 ± 14.0c

Adiponectin (μg/L)#

15.1 ± 8.7a

11.4 ± 7.3b

10.3 ± 5.8b

15.0 ± 7.8a

11.5 ± 5.8b

10.6 ± 5.3b

Leptin/Adiponectin#

0.18 ± 0.39a

0.95 ± 1.24b

2.04 ± 1.99c

0.55 ± 0.95a

1.74 ± 2.21b

2.63 ± 2.83c

  1. Abbreviations: BMI body mass index, WC waist circumference, SBP systolic blood pressure, DBP diastolic blood pressure, TC total cholesterol, TG triglycerides, HDL-C high-density lipoprotein cholesterol, LDL-C low-density lipoprotein cholesterol, HOMA-IR homeostatic model assessment of insulin resistance, leptin/adiponectin leptin-to-adiponectin ratio. Data are expressed as mean ± SD. #Skewed distributions were logarithmically transformed for one-way ANOVA. Values in the same row with different superscript letters (e.g. a, b, c) are significantly different, with p < 0.05 (one-way ANOVA between normal-weight vs. overweight vs. obese groups).