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Table 1 Descriptive characteristics* of junior high school students in Ho Chi Minh City in 2007 by gender

From: Association between physical activity and metabolic syndrome: a cross sectional survey in adolescents in Ho Chi Minh City, Vietnam

  Boys Girls Total
  (n = 284) (n = 333) (n = 617)
  % or mean % or mean % or mean
  (95% CI) (95% CI) (95% CI)
Age (years) 13.9
(13.6, 14.2)
14.0
(13.7, 14.3)
13.9
(13.7, 14.2)
Height (cm) 158.6
(156.3, 160.8)
154.4
(153.4, 155.3)
156.3
(154.8, 157.7)
Weight (kg) 50.9
(48.5, 53.3)
47.1
(45.6, 48.6)
48.8
(47.3, 50.3)
Sum of four skinfolds (cm) 52.7
(50.0, 55.6)
60.2
(57.8, 62.6)
55.95
(53.1, 58.8)
Waist circumference (cm) 68.8
(67.4, 70.1)
66.3
(64.9, 67.8)
67.4
(66.5, 68.4)
BMI (kg/m2) 19.7
(19.3, 20,1)
19.6
(19.2,19.9)
19.7
(19.4, 19.9)
Glucose (mmol/L) 4.79
(4.7, 4.9)
4.66
(4.6, 4.7)
4.72
(4.7, 4.8)
HDL-c (mmol/L) 1.40
(1.3, 1.4)
1.50
(1.4,1.5)
1.46
(1.40, 1.51)
LDL-c (mmol/L) 2.37
(2.3, 2.5)
2.37
(2.3, 2.4)
2.39
(2.3, 2.4)
Triglyceride (mmol/L) 1.17
(1.1, 1.2)
1.08
(1.0, 1.1)
1.12
(1.1, 1.2)
Systolic blood pressure (mmHg) 118.8
(117.5, 120.2)
115.4
(114.0,116.7)
116.5
(115.1, 117.9)
Diastolic blood pressure (mmHg) 73.6
(72.4,74.9)
71.5
(70.5, 72.6)
72.3
(70.7, 73.8)
Moderate and vigorous PA
(min/d)
68.0
(63.4, 72.7)
53.6
(50.2, 57.1)
60.3
(57.4, 63.2)
Maternal education    
No schooling or incomplete primary school 7.2
(2.4, 11.9)
7.3
(2.6, 11.9)
6.7
(2.6, 10.8)
Incomplete junior high school 17.8
(12.0, 23.6)
2.0
(13.1, 27.6)
19.4
(13.9, 24.9)
Incomplete senior high school 19.9
(15.1, 24.7)
25.1
(19.5, 30.7)
22.5
(19.4, 25.6)
Complete senior high school or higher 55.1
(44.5, 65.7)
47.3
(36.0, 58.5)
51.3
(41.3, 61.4)
Pubertal status    
Prepubescent 20.6
(12.7, 28.5)
11.7
(4.4, 19.1)
15.8
(9.4, 22.1)
Pubescent 78.4
(70.4, 86.5)
86.3
(79.3, 93.4)
82.7
(76.5, 89.0)
Postpubescent 0.9
(0.3, 2.0)
1.9
(0.3, 3.5)
1.5
(0.2, 2.8)
Economic status    
Poorest (1st quintile) 20.6
(13.0, 28.2)
25.4
(18.0, 32.8)
25.4
(18.0, 32.8)
2nd quintile 20.2
(14.4, 21.6)
18.8
(12.8, 24.7)
18.8
(12.8, 24.7)
3rd quintile 13.3
(5.0, 21.6)
25.2
(16.7, 33.7)
25.2
(16.6, 33.7)
4th quintile 26.7
(17.8, 35.6)
12.6
(8.8, 16.4)
12.6
(8.8, 16.4)
Richest (5th quintile) 19.2
(10.5, 27.8)
18.0
(9.3, 26.7)
18.0
(9.3, 26.7)
Overweight/obesea 20.5 11.4 15.5
Yes (13.4, 27.6) (6.1, 16.7) (11.6, 19.5)
  1. *Demographic, socio-economic, nutritional characteristics, blood lipid profile and blood pressure
  2. a Combined overweight and obese using IOTF cut-off values