Table 1 Characteristics of participants

Gender

 Male

26,684

53.90

18,334

53.42

10,482

49.08

55,500

52.77

 Female

22,823

46.10

15,984

46.58

10,874

50.92

49,681

47.23

School type

 Public school

25,127

50.75

22,114

64.44

19,965

93.49

67,206

63.90

 Private school

24,380

49.25

12,204

35.56

1391

6.51

37,975

36.10

Area

 Urban

29,160

58.90

27,959

81.47

21,062

98.62

78,181

74.33

 Suburb

15,012

30.32

6019

17.54

294

1.38

21,325

20.27

 Remote town

5335

10.78

340

0.99

0

0.00

5675

5.40

Age*

9.71 ± 1.75

14.01 ± 0.97

17.22 ± 0.99

12.64 ± 3.30

Height (cm)*

133.84 ± 11.67

160.20 ± 7.96

166.16 ± 8.16

149.00 ± 17.51

Weight (kg)*

29.80 ± 8.48

49.81 ± 9.26

56.20 ± 9.39

41.56 ± 14.46

SBP (mmHg)*

101.76 ± 9.16

110.72 ± 11.28

114.14 ± 11.30

107.26 ± 12.42

DBP (mmHg)*

66.12 ± 7.00

70.80 ± 8.20

72.24 ± 8.15

68.91 ± 8.13