Type of serious injury

n¹

%² (95% CI³)

Age (years)

<14

14

15

16+

5395

5357

5554

9187

21.2 (19.5 - 23.0)

20.6 (18.3 - 23.0)

20.2 (18.6 - 21.9)

38.0 (36.6 - 39.5)

Sex

Male

Female

12732

12729

50.2 (48.3 - 52.0)

49.8 (48.0 - 51.7)

School grade

Remove class

Form 1 (13 years old)

Form 2 (14 years old)

Form 3 (15 years old)

Form 4 (16 years old)

Form 5 (17 years old)

162

5271

5329

5599

4515

4571

0.8 (0.4 - 1.5)

21.0 (19.0 - 23.2)

20.4 (17.9 - 23.2)

20.1 (18.2 - 22.1)

19.2 (16.9 - 21.8)

18.4 (16.3 - 20.7)