Table 1 Characteristics of the participants

0–5-year group

Total

19

4.7 ± 0.9

89.1 ± 10.3

72.8 ± 17.3

10

Male

14

4.6 ± 1.0

89.1 ± 9.3

70.0 ± 19.0

8

Female

5

5.0 ± 0.5

89.2 ± 13.9

80.6 ± 8.7

2

6–11-year group

Total

34

9.2 ± 1.6

94.6 ± 14.6

88.5 ± 25.6

17

Male

28

9.0 ± 1.6

95.0 ± 15.1

88.3 ± 26.7

15

Female

6

10.0 ± 1.6

92.7 ± 13.0

89.3 ± 21.2

2

12–18-year group

Total

30

14.5 ± 1.6

97.3 ± 14.6

88.3 ± 24.7

14

Male

22

14.4 ± 1.7

101.0 ± 13.7

88.7 ± 23.1

11

Female

8

14.9 ± 1.4

87.3 ± 12.8

87.3 ± 30.5

3

0–5-year group

Total

120

4.6 ± 1.0

–

29.6 ± 11.8

–

Male

58

4.5 ± 1.0

–

31.3 ± 10.7

–

Female

62

4.7 ± 1.0

–

28.0 ± 12.6

–

6–11-year group

Total

150

8.7 ± 1.7

–

23.8 ± 11.8

–

Male

69

8.6 ± 1.6

–

24.4 ± 11.8

–

Female

81

8.8 ± 1.7

–

23.3 ± 11.9

–

12–18-year group

Total

37

14.2 ± 1.5

–

21.5 ± 11.7

–

Male

14

13.2 ± 0.8

–

19.7 ± 10.3

–

Female

23

14.8 ± 1.6

–

22.5 ± 12.6

–