Table 4 Prevalence of postural defects among 8- to 12-year-old children stratified according to sex

1020

29.0

27.5–30.5

1181

34.0

32.4–35.6

< 0.001

1

0.0

0.0–0.1

13

0.4

0.2–0.7

0.001

507

14.4

13.2–15.6

510

14.7

13.5–15.9

0.765

676

19.2

17.9–20.5

850

24.5

23.1–26.0

< 0.001

117

3.3

2.7–3.9

215

6.2

5.4–7.1

< 0.001

53

1.5

1.1–2.0

96

2.8

2.3–3.4

< 0.001

40

1.1

0.8–1.5

83

2.4

1.9–2.9

< 0.001

22

0.6

0.4–0.9

31

0.9

0.6–1.3

0.200

2

0.1

0.0–0.3

5

0.1

0.0–0.2

0.250